diff --git a/adminSDK/directory/index.js b/adminSDK/directory/index.js
index d140a83b..5aaf7c36 100644
--- a/adminSDK/directory/index.js
+++ b/adminSDK/directory/index.js
@@ -13,89 +13,34 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START admin_sdk_directory_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/admin.directory.user'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the first 10 users in the domain.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listUsers() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Lists the first 10 users in the domain.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listUsers(auth) {
   const service = google.admin({version: 'directory_v1', auth});
-  const res = await service.users.list({
+  const result = await service.users.list({
     customer: 'my_customer',
     maxResults: 10,
     orderBy: 'email',
   });
 
-  const users = res.data.users;
+  const users = result.data.users;
   if (!users || users.length === 0) {
     console.log('No users found.');
     return;
@@ -103,9 +48,10 @@ async function listUsers(auth) {
 
   console.log('Users:');
   users.forEach((user) => {
-    console.log(`${user.primaryEmail} (${user.name.fullName})`);
+    console.log(`${user.primaryEmail} (${user.name?.fullName})`);
   });
 }
 
-authorize().then(listUsers).catch(console.error);
+await listUsers();
+
 // [END admin_sdk_directory_quickstart]
diff --git a/adminSDK/directory/package.json b/adminSDK/directory/package.json
index 1f291193..ead564bd 100644
--- a/adminSDK/directory/package.json
+++ b/adminSDK/directory/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/adminSDK/directory/tsconfig.json b/adminSDK/directory/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/adminSDK/directory/tsconfig.json
+++ b/adminSDK/directory/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/adminSDK/reports/index.js b/adminSDK/reports/index.js
index fcceb8e1..62e42d3b 100644
--- a/adminSDK/reports/index.js
+++ b/adminSDK/reports/index.js
@@ -13,88 +13,32 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START admin_sdk_reports_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/admin.reports.audit.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the last 10 login events for the domain.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listLoginEvents() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
-
-/**
- * Lists the last 10 login events for the domain.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listLoginEvents(auth) {
   const service = google.admin({version: 'reports_v1', auth});
-  const res = await service.activities.list({
+  const result = await service.activities.list({
     userKey: 'all',
     applicationName: 'login',
     maxResults: 10,
   });
-  const activities = res.data.items;
+  const activities = result.data.items;
   if (!activities || activities.length === 0) {
     console.log('No logins found.');
     return;
@@ -103,10 +47,10 @@ async function listLoginEvents(auth) {
   console.log('Logins:');
   activities.forEach((activity) => {
     console.log(
-        `${activity.id.time}: ${activity.actor.email} (${activity.events[0].name})`,
+        `${activity.id?.time}: ${activity.actor?.email} (${activity.events?.[0]?.name})`,
     );
   });
 }
 
-authorize().then(listLoginEvents).catch(console.error);
+await listLoginEvents();
 // [END admin_sdk_reports_quickstart]
diff --git a/adminSDK/reports/package.json b/adminSDK/reports/package.json
index a5b72785..4f29fd9f 100644
--- a/adminSDK/reports/package.json
+++ b/adminSDK/reports/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/adminSDK/reports/tsconfig.json b/adminSDK/reports/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/adminSDK/reports/tsconfig.json
+++ b/adminSDK/reports/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/adminSDK/reseller/index.js b/adminSDK/reseller/index.js
index 2abc4e80..cef5ed83 100644
--- a/adminSDK/reseller/index.js
+++ b/adminSDK/reseller/index.js
@@ -13,86 +13,31 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START admin_sdk_reseller_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/apps.order'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the first 10 subscriptions you manage.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listSubscriptions() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Lists the first 10 subscriptions you manage.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listSubscriptions(auth) {
   const service = google.reseller({version: 'v1', auth});
-  const res = await service.subscriptions.list({
+  const result = await service.subscriptions.list({
     maxResults: 10,
   });
-  const subscriptions = res.data.subscriptions;
+  const subscriptions = result.data.subscriptions;
   if (!subscriptions || subscriptions.length === 0) {
     console.log('No subscriptions found.');
     return;
@@ -100,8 +45,10 @@ async function listSubscriptions(auth) {
 
   console.log('Subscriptions:');
   subscriptions.forEach(({customerId, skuId, plan}) => {
-    console.log(`${customerId} (${skuId}, ${plan.planName})`);
+    console.log(`${customerId} (${skuId}, ${plan?.planName})`);
   });
 }
-authorize().then(listSubscriptions).catch(console.error);
+
+await listSubscriptions();
+
 // [END admin_sdk_reseller_quickstart]
diff --git a/adminSDK/reseller/package.json b/adminSDK/reseller/package.json
index f89a751b..8a273b2a 100644
--- a/adminSDK/reseller/package.json
+++ b/adminSDK/reseller/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/adminSDK/reseller/tsconfig.json b/adminSDK/reseller/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/adminSDK/reseller/tsconfig.json
+++ b/adminSDK/reseller/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/apps-script/execute/index.js b/apps-script/execute/index.js
index 07a8ad8d..7fb5fb3a 100644
--- a/apps-script/execute/index.js
+++ b/apps-script/execute/index.js
@@ -13,14 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START apps_script_api_execute]
+
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Call an Apps Script function to list the folders in the user's root Drive
  * folder.
- *
  */
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
 async function callAppsScript() {
   const scriptId = '1xGOh6wCm7hlIVSVPKm0y_dL-YqetspS5DEVmMzaxd_6AAvI-_u8DSgBT';
 
@@ -30,51 +32,47 @@ async function callAppsScript() {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const script = google.script({version: 'v1', auth});
+  // Make the API request. The request object is included here as 'resource'.
+  const resp = await script.scripts.run({
+    auth,
+    requestBody: {
+      function: 'getFoldersUnderRoot',
+    },
+    scriptId,
+  });
 
-  try {
-    // Make the API request. The request object is included here as 'resource'.
-    const resp = await script.scripts.run({
-      auth: auth,
-      resource: {
-        function: 'getFoldersUnderRoot',
-      },
-      scriptId: scriptId,
-    });
-    if (resp.error) {
-      // The API executed, but the script returned an error.
+  if (resp.data.error?.details?.[0]) {
+    // The API executed, but the script returned an error.
 
-      // Extract the first (and only) set of error details. The values of this
-      // object are the script's 'errorMessage' and 'errorType', and an array
-      // of stack trace elements.
-      const error = resp.error.details[0];
-      console.log('Script error message: ' + error.errorMessage);
-      console.log('Script error stacktrace:');
+    // Extract the first (and only) set of error details. The values of this
+    // object are the script's 'errorMessage' and 'errorType', and an array
+    // of stack trace elements.
+    const error = resp.data.error.details[0];
 
-      if (error.scriptStackTraceElements) {
-        // There may not be a stacktrace if the script didn't start executing.
-        for (let i = 0; i < error.scriptStackTraceElements.length; i++) {
-          const trace = error.scriptStackTraceElements[i];
-          console.log('\t%s: %s', trace.function, trace.lineNumber);
-        }
+    console.log(`Script error message: ${error.errorMessage}`);
+    console.log('Script error stacktrace:');
+
+    if (error.scriptStackTraceElements) {
+      // There may not be a stacktrace if the script didn't start executing.
+      for (let i = 0; i < error.scriptStackTraceElements.length; i++) {
+        const trace = error.scriptStackTraceElements[i];
+        console.log('\t%s: %s', trace.function, trace.lineNumber);
       }
+    }
+  } else {
+    // The structure of the result will depend upon what the Apps Script
+    // function returns. Here, the function returns an Apps Script Object
+    // with String keys and values, and so the result is treated as a
+    // Node.js object (folderSet).
+    const folderSet = resp.data.response ?? {};
+    if (Object.keys(folderSet).length === 0) {
+      console.log('No folders returned!');
     } else {
-      // The structure of the result will depend upon what the Apps Script
-      // function returns. Here, the function returns an Apps Script Object
-      // with String keys and values, and so the result is treated as a
-      // Node.js object (folderSet).
-      const folderSet = resp.response.result;
-      if (Object.keys(folderSet).length == 0) {
-        console.log('No folders returned!');
-      } else {
-        console.log('Folders under your root folder:');
-        Object.keys(folderSet).forEach(function(id) {
-          console.log('\t%s (%s)', folderSet[id], id);
-        });
-      }
+      console.log('Folders under your root folder:');
+      Object.keys(folderSet).forEach((id) => {
+        console.log('\t%s (%s)', folderSet[id], id);
+      });
     }
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
   }
 }
 // [END apps_script_api_execute]
diff --git a/apps-script/execute/package.json b/apps-script/execute/package.json
index bfeb0a1a..15397bb7 100644
--- a/apps-script/execute/package.json
+++ b/apps-script/execute/package.json
@@ -8,9 +8,13 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/apps-script/execute/tsconfig.json b/apps-script/execute/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/apps-script/execute/tsconfig.json
+++ b/apps-script/execute/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/apps-script/quickstart/index.js b/apps-script/quickstart/index.js
index 215614ac..bc7126d3 100644
--- a/apps-script/quickstart/index.js
+++ b/apps-script/quickstart/index.js
@@ -13,90 +13,41 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START apps_script_api_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/script.projects'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Creates a new script project, upload a file, and log the script's URL.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function callAppsScript() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Creates a new script project, upload a file, and log the script's URL.
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function callAppsScript(auth) {
   const script = google.script({version: 'v1', auth});
-  let res = await script.projects.create({
-    resource: {
+  const project = await script.projects.create({
+    requestBody: {
       title: 'My Script',
     },
   });
-  res = await script.projects.updateContent({
-    scriptId: res.data.scriptId,
+
+  if (!project.data.scriptId) {
+    throw new Error('Failed to create project');
+  }
+
+  await script.projects.updateContent({
+    scriptId: project.data.scriptId,
     auth,
-    resource: {
+    requestBody: {
       files: [
         {
           name: 'hello',
@@ -112,8 +63,8 @@ async function callAppsScript(auth) {
       ],
     },
   });
-  console.log(`https://script.google.com/d/${res.data.scriptId}/edit`);
+  console.log(`https://script.google.com/d/${project.data.scriptId}/edit`);
 }
 
-authorize().then(callAppsScript).catch(console.error);
+await callAppsScript();
 // [END apps_script_api_quickstart]
diff --git a/apps-script/quickstart/package.json b/apps-script/quickstart/package.json
index fe1de2aa..d724b6b7 100644
--- a/apps-script/quickstart/package.json
+++ b/apps-script/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/apps-script/quickstart/tsconfig.json b/apps-script/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/apps-script/quickstart/tsconfig.json
+++ b/apps-script/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/calendar/quickstart/index.js b/calendar/quickstart/index.js
index 403e4493..249ba965 100644
--- a/calendar/quickstart/index.js
+++ b/calendar/quickstart/index.js
@@ -13,99 +13,46 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START calendar_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/calendar.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the next 10 events on the user's primary calendar.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listEvents() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Lists the next 10 events on the user's primary calendar.
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listEvents(auth) {
   const calendar = google.calendar({version: 'v3', auth});
-  const res = await calendar.events.list({
+  const result = await calendar.events.list({
     calendarId: 'primary',
     timeMin: new Date().toISOString(),
     maxResults: 10,
     singleEvents: true,
     orderBy: 'startTime',
   });
-  const events = res.data.items;
+  const events = result.data.items;
   if (!events || events.length === 0) {
     console.log('No upcoming events found.');
     return;
   }
   console.log('Upcoming 10 events:');
-  events.map((event, i) => {
-    const start = event.start.dateTime || event.start.date;
+
+  for (const event of events) {
+    const start = event.start?.dateTime ?? event.start?.date;
     console.log(`${start} - ${event.summary}`);
-  });
+  }
 }
 
-authorize().then(listEvents).catch(console.error);
+await listEvents();
 // [END calendar_quickstart]
diff --git a/calendar/quickstart/package.json b/calendar/quickstart/package.json
index e58c1ecd..3200610e 100644
--- a/calendar/quickstart/package.json
+++ b/calendar/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/calendar/quickstart/tsconfig.json b/calendar/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/calendar/quickstart/tsconfig.json
+++ b/calendar/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/chat/client-libraries/cloud/authentication-utils.js b/chat/client-libraries/cloud/authentication-utils.js
index c32c910f..c496b840 100644
--- a/chat/client-libraries/cloud/authentication-utils.js
+++ b/chat/client-libraries/cloud/authentication-utils.js
@@ -16,13 +16,13 @@
 
 // [START chat_authentication_utils]
 
-import http from 'http';
-import url from 'url';
+import {readFile} from 'node:fs/promises';
+import http from 'node:http';
+import url from 'node:url';
+import {ChatServiceClient} from '@google-apps/chat';
+import {OAuth2Client} from 'google-auth-library';
 import open from 'open';
 import destroyer from 'server-destroy';
-import {readFile} from 'fs/promises';
-import {OAuth2Client} from 'google-auth-library';
-import {ChatServiceClient} from '@google-apps/chat';
 
 // Application authentication
 const SERVICE_ACCOUNT_FILE = './service_account.json';
@@ -31,7 +31,7 @@ const APP_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.bot'];
 // User authentication
 const CLIENT_SECRETS_FILE = './credentials.json';
 const CLIENT_SECRETS = JSON.parse(
-    await readFile(new URL(CLIENT_SECRETS_FILE, import.meta.url)),
+    await readFile(new URL(CLIENT_SECRETS_FILE, import.meta.url), 'utf8'),
 ).web;
 
 /**
@@ -59,7 +59,7 @@ export async function createClientWithUserCredentials(scopes) {
   // https://developers.google.com/workspace/chat/authenticate-authorize-chat-user
   return new ChatServiceClient({
     authClient: await getAuthenticatedUserOAuth2Client(scopes),
-    scopes: scopes,
+    scopes,
   });
 }
 
diff --git a/chat/client-libraries/cloud/create-custom-emoji-user-cred.js b/chat/client-libraries/cloud/create-custom-emoji-user-cred.js
index 35b2d480..78dc77b0 100644
--- a/chat/client-libraries/cloud/create-custom-emoji-user-cred.js
+++ b/chat/client-libraries/cloud/create-custom-emoji-user-cred.js
@@ -13,19 +13,22 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// It may require modifications to work in your environment.
 
 // [START chat_create_custom_emoji_user_cred]
 
+import fs from 'node:fs';
 import {createClientWithUserCredentials} from './authentication-utils.js';
-import fs from 'fs';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.customemojis'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.customemojis',
+];
 
 // This sample shows how to create custom emoji with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // TODO(developer) Replace FILENAME here.
   const filename = 'FILENAME';
@@ -39,7 +42,7 @@ async function main() {
       emoji_name: 'EMOJI_NAME',
       payload: {
         file_content: fileContent,
-        filename: filename,
+        filename,
       },
     },
   };
@@ -51,6 +54,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_custom_emoji_user_cred]
diff --git a/chat/client-libraries/cloud/create-membership-user-cred-for-app.js b/chat/client-libraries/cloud/create-membership-user-cred-for-app.js
index 6388f54f..5f47992e 100644
--- a/chat/client-libraries/cloud/create-membership-user-cred-for-app.js
+++ b/chat/client-libraries/cloud/create-membership-user-cred-for-app.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.memberships.app'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.memberships.app',
+];
 
 // This sample shows how to create membership with app credential for an app
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -47,6 +51,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_membership_user_cred_for_app]
diff --git a/chat/client-libraries/cloud/create-membership-user-cred-for-group.js b/chat/client-libraries/cloud/create-membership-user-cred-for-group.js
index a3a85751..1e80d41e 100644
--- a/chat/client-libraries/cloud/create-membership-user-cred-for-group.js
+++ b/chat/client-libraries/cloud/create-membership-user-cred-for-group.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.memberships'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.memberships',
+];
 
 // This sample shows how to create membership with user credential for a group
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -45,6 +49,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_membership_user_cred_for_group]
diff --git a/chat/client-libraries/cloud/create-membership-user-cred.js b/chat/client-libraries/cloud/create-membership-user-cred.js
index f978a9c9..199ffaa0 100644
--- a/chat/client-libraries/cloud/create-membership-user-cred.js
+++ b/chat/client-libraries/cloud/create-membership-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.memberships'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.memberships',
+];
 
 // This sample shows how to create membership with user credential for a human user
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -47,6 +51,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_membership_user_cred]
diff --git a/chat/client-libraries/cloud/create-message-app-cred.js b/chat/client-libraries/cloud/create-message-app-cred.js
index 03451fda..85ebc019 100644
--- a/chat/client-libraries/cloud/create-message-app-cred.js
+++ b/chat/client-libraries/cloud/create-message-app-cred.js
@@ -29,47 +29,85 @@ async function main() {
     // Replace SPACE_NAME here.
     parent: 'spaces/SPACE_NAME',
     message: {
-      text: '👋🌎 Hello world! I created this message by calling ' +
-            'the Chat API\'s `messages.create()` method.',
-      cardsV2: [{card: {
-        header: {
-          title: 'About this message',
-          imageUrl: 'https://fonts.gstatic.com/s/i/short-term/release/googlesymbols/info/default/24px.svg',
+      text:
+        '👋🌎 Hello world! I created this message by calling ' +
+        'the Chat API\'s `messages.create()` method.',
+      cardsV2: [
+        {
+          card: {
+            header: {
+              title: 'About this message',
+              imageUrl:
+                'https://fonts.gstatic.com/s/i/short-term/release/googlesymbols/info/default/24px.svg',
+            },
+            sections: [
+              {
+                header: 'Contents',
+                widgets: [
+                  {
+                    textParagraph: {
+                      text:
+                        '🔡 <b>Text</b> which can include ' +
+                        'hyperlinks 🔗, emojis 😄🎉, and @mentions 🗣️.',
+                    },
+                  },
+                  {
+                    textParagraph: {
+                      text:
+                        '🖼️ A <b>card</b> to display visual elements' +
+                        'and request information such as text 🔤, ' +
+                        'dates and times 📅, and selections ☑️.',
+                    },
+                  },
+                  {
+                    textParagraph: {
+                      text:
+                        '👉🔘 An <b>accessory widget</b> which adds ' +
+                        'a button to the bottom of a message.',
+                    },
+                  },
+                ],
+              },
+              {
+                header: 'What\'s next',
+                collapsible: true,
+                widgets: [
+                  {
+                    textParagraph: {
+                      text: '❤️ <a href=\'https://developers.google.com/workspace/chat/api/reference/rest/v1/spaces.messages.reactions/create\'>Add a reaction</a>.',
+                    },
+                  },
+                  {
+                    textParagraph: {
+                      text:
+                        '🔄 <a href=\'https://developers.google.com/workspace/chat/api/reference/rest/v1/spaces.messages/patch\'>Update</a> ' +
+                        'or ❌ <a href=\'https://developers.google.com/workspace/chat/api/reference/rest/v1/spaces.messages/delete\'>delete</a> ' +
+                        'the message.',
+                    },
+                  },
+                ],
+              },
+            ],
+          },
         },
-        sections: [{
-          header: 'Contents',
-          widgets: [{textParagraph: {
-            text: '🔡 <b>Text</b> which can include ' +
-                    'hyperlinks 🔗, emojis 😄🎉, and @mentions 🗣️.',
-          }}, {textParagraph: {
-            text: '🖼️ A <b>card</b> to display visual elements' +
-                    'and request information such as text 🔤, ' +
-                    'dates and times 📅, and selections ☑️.',
-          }}, {textParagraph: {
-            text: '👉🔘 An <b>accessory widget</b> which adds ' +
-                    'a button to the bottom of a message.',
-          }},
-          ]}, {
-          header: 'What\'s next',
-          collapsible: true,
-          widgets: [{textParagraph: {
-            text: '❤️ <a href=\'https://developers.google.com/workspace/chat/api/reference/rest/v1/spaces.messages.reactions/create\'>Add a reaction</a>.',
-          }}, {textParagraph: {
-            text: '🔄 <a href=\'https://developers.google.com/workspace/chat/api/reference/rest/v1/spaces.messages/patch\'>Update</a> ' +
-                      'or ❌ <a href=\'https://developers.google.com/workspace/chat/api/reference/rest/v1/spaces.messages/delete\'>delete</a> ' +
-                      'the message.',
+      ],
+      accessoryWidgets: [
+        {
+          buttonList: {
+            buttons: [
+              {
+                text: 'View documentation',
+                icon: {materialIcon: {name: 'link'}},
+                onClick: {
+                  openLink: {
+                    url: 'https://developers.google.com/workspace/chat/create-messages',
+                  },
+                },
+              },
+            ],
           },
-          }],
         },
-        ],
-      }}],
-      accessoryWidgets: [{buttonList: {buttons: [{
-        text: 'View documentation',
-        icon: {materialIcon: {name: 'link'}},
-        onClick: {openLink: {
-          url: 'https://developers.google.com/workspace/chat/create-messages',
-        }},
-      }]}}],
+      ],
     },
   };
 
@@ -80,6 +118,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_message_app_cred]
diff --git a/chat/client-libraries/cloud/create-message-user-cred-at-mention.js b/chat/client-libraries/cloud/create-message-user-cred-at-mention.js
index b23887a9..f52f8997 100644
--- a/chat/client-libraries/cloud/create-message-user-cred-at-mention.js
+++ b/chat/client-libraries/cloud/create-message-user-cred-at-mention.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.create',
+];
 
 // This sample shows how to create message with user credential with a user mention
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -44,6 +48,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_message_user_cred_at_mention]
diff --git a/chat/client-libraries/cloud/create-message-user-cred-message-id.js b/chat/client-libraries/cloud/create-message-user-cred-message-id.js
index 53792ce2..5eadba80 100644
--- a/chat/client-libraries/cloud/create-message-user-cred-message-id.js
+++ b/chat/client-libraries/cloud/create-message-user-cred-message-id.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.create',
+];
 
 // This sample shows how to create message with user credential with message id
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -43,6 +47,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_message_user_cred_message_id]
diff --git a/chat/client-libraries/cloud/create-message-user-cred-request-id.js b/chat/client-libraries/cloud/create-message-user-cred-request-id.js
index 67565990..d139a6a4 100644
--- a/chat/client-libraries/cloud/create-message-user-cred-request-id.js
+++ b/chat/client-libraries/cloud/create-message-user-cred-request-id.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.create',
+];
 
 // This sample shows how to create message with user credential with request id
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -43,6 +47,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_message_user_cred_request_id]
diff --git a/chat/client-libraries/cloud/create-message-user-cred-thread-key.js b/chat/client-libraries/cloud/create-message-user-cred-thread-key.js
index 0d82de19..77cd3630 100644
--- a/chat/client-libraries/cloud/create-message-user-cred-thread-key.js
+++ b/chat/client-libraries/cloud/create-message-user-cred-thread-key.js
@@ -17,15 +17,19 @@
 
 // [START chat_create_message_user_cred_thread_key]
 
-import {createClientWithUserCredentials} from './authentication-utils.js';
 import {protos} from '@google-apps/chat';
+import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.create',
+];
 
 // This sample shows how to create message with user credential with thread key
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -33,7 +37,9 @@ async function main() {
     parent: 'spaces/SPACE_NAME',
     // Creates the message as a reply to the thread specified by thread_key
     // If it fails, the message starts a new thread instead
-    messageReplyOption: protos.google.chat.v1.CreateMessageRequest.MessageReplyOption.REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD,
+    messageReplyOption:
+      protos.google.chat.v1.CreateMessageRequest.MessageReplyOption
+          .REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD,
     message: {
       text: 'Hello with user credential!',
       thread: {
@@ -51,6 +57,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_message_user_cred_thread_key]
diff --git a/chat/client-libraries/cloud/create-message-user-cred-thread-name.js b/chat/client-libraries/cloud/create-message-user-cred-thread-name.js
index 9e86c297..bd9d27d2 100644
--- a/chat/client-libraries/cloud/create-message-user-cred-thread-name.js
+++ b/chat/client-libraries/cloud/create-message-user-cred-thread-name.js
@@ -17,15 +17,19 @@
 
 // [START chat_create_message_user_cred_thread_name]
 
-import {createClientWithUserCredentials} from './authentication-utils.js';
 import {protos} from '@google-apps/chat';
+import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.create',
+];
 
 // This sample shows how to create message with user credential with thread name
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -33,7 +37,9 @@ async function main() {
     parent: 'spaces/SPACE_NAME',
     // Creates the message as a reply to the thread specified by thread.name
     // If it fails, the message starts a new thread instead
-    messageReplyOption: protos.google.chat.v1.CreateMessageRequest.MessageReplyOption.REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD,
+    messageReplyOption:
+      protos.google.chat.v1.CreateMessageRequest.MessageReplyOption
+          .REPLY_MESSAGE_FALLBACK_TO_NEW_THREAD,
     message: {
       text: 'Hello with user credential!',
       thread: {
@@ -51,6 +57,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_message_user_cred_thread_name]
diff --git a/chat/client-libraries/cloud/create-message-user-cred.js b/chat/client-libraries/cloud/create-message-user-cred.js
index 08083472..1a56479d 100644
--- a/chat/client-libraries/cloud/create-message-user-cred.js
+++ b/chat/client-libraries/cloud/create-message-user-cred.js
@@ -19,26 +19,31 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.create',
+];
 
 // This sample shows how to create message with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
     // Replace SPACE_NAME here.
     parent: 'spaces/SPACE_NAME',
     message: {
-      text: '👋🌎 Hello world!' +
-            'Text messages can contain things like:\n\n' +
-            '* Hyperlinks 🔗\n' +
-            '* Emojis 😄🎉\n' +
-            '* Mentions of other Chat users `@` \n\n' +
-            'For details, see the ' +
-            '<https://developers.google.com/workspace/chat/format-messages' +
-            '|Chat API developer documentation>.',
+      text:
+        '👋🌎 Hello world!' +
+        'Text messages can contain things like:\n\n' +
+        '* Hyperlinks 🔗\n' +
+        '* Emojis 😄🎉\n' +
+        '* Mentions of other Chat users `@` \n\n' +
+        'For details, see the ' +
+        '<https://developers.google.com/workspace/chat/format-messages' +
+        '|Chat API developer documentation>.',
     },
   };
 
@@ -49,6 +54,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_message_user_cred]
diff --git a/chat/client-libraries/cloud/create-reaction-user-cred.js b/chat/client-libraries/cloud/create-reaction-user-cred.js
index 557adc82..7a5da922 100644
--- a/chat/client-libraries/cloud/create-reaction-user-cred.js
+++ b/chat/client-libraries/cloud/create-reaction-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.reactions.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.reactions.create',
+];
 
 // This sample shows how to create reaction to a message with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -43,6 +47,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_reaction_user_cred]
diff --git a/chat/client-libraries/cloud/create-space-user-cred.js b/chat/client-libraries/cloud/create-space-user-cred.js
index fd4404b7..d820bce6 100644
--- a/chat/client-libraries/cloud/create-space-user-cred.js
+++ b/chat/client-libraries/cloud/create-space-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.spaces.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.spaces.create',
+];
 
 // This sample shows how to create a named space with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -42,6 +46,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_create_space_user_cred]
diff --git a/chat/client-libraries/cloud/delete-custom-emoji-user-cred.js b/chat/client-libraries/cloud/delete-custom-emoji-user-cred.js
index c64396cf..dac9303f 100644
--- a/chat/client-libraries/cloud/delete-custom-emoji-user-cred.js
+++ b/chat/client-libraries/cloud/delete-custom-emoji-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.customemojis'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.customemojis',
+];
 
 // This sample shows how to delete a custom emoji with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_delete_custom_emoji_user_cred]
diff --git a/chat/client-libraries/cloud/delete-membership-user-cred.js b/chat/client-libraries/cloud/delete-membership-user-cred.js
index 45a3195d..456ad254 100644
--- a/chat/client-libraries/cloud/delete-membership-user-cred.js
+++ b/chat/client-libraries/cloud/delete-membership-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.memberships'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.memberships',
+];
 
 // This sample shows how to delete a membership of type HUMAN with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_delete_membership_user_cred]
diff --git a/chat/client-libraries/cloud/delete-message-app-cred.js b/chat/client-libraries/cloud/delete-message-app-cred.js
index 7dc6d707..6461f606 100644
--- a/chat/client-libraries/cloud/delete-message-app-cred.js
+++ b/chat/client-libraries/cloud/delete-message-app-cred.js
@@ -37,6 +37,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_delete_message_app_cred]
diff --git a/chat/client-libraries/cloud/delete-message-user-cred.js b/chat/client-libraries/cloud/delete-message-user-cred.js
index 74a8f7d9..de10c80f 100644
--- a/chat/client-libraries/cloud/delete-message-user-cred.js
+++ b/chat/client-libraries/cloud/delete-message-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages',
+];
 
 // This sample shows how to delete a message with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_delete_message_user_cred]
diff --git a/chat/client-libraries/cloud/delete-reaction-user-cred.js b/chat/client-libraries/cloud/delete-reaction-user-cred.js
index 6de2421d..43784853 100644
--- a/chat/client-libraries/cloud/delete-reaction-user-cred.js
+++ b/chat/client-libraries/cloud/delete-reaction-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.reactions'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.reactions',
+];
 
 // This sample shows how to delete a reaction to a message with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_delete_reaction_user_cred]
diff --git a/chat/client-libraries/cloud/delete-space-user-cred.js b/chat/client-libraries/cloud/delete-space-user-cred.js
index 0cc849fd..32f2b1fc 100644
--- a/chat/client-libraries/cloud/delete-space-user-cred.js
+++ b/chat/client-libraries/cloud/delete-space-user-cred.js
@@ -24,7 +24,9 @@ const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.delete'];
 // This sample shows how to delete a space with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +41,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_delete_space_user_cred]
diff --git a/chat/client-libraries/cloud/find-dm-space-app-cred.js b/chat/client-libraries/cloud/find-dm-space-app-cred.js
index 812c58fd..7ac58ada 100644
--- a/chat/client-libraries/cloud/find-dm-space-app-cred.js
+++ b/chat/client-libraries/cloud/find-dm-space-app-cred.js
@@ -37,6 +37,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_find_dm_space_app_cred]
diff --git a/chat/client-libraries/cloud/find-dm-space-user-cred.js b/chat/client-libraries/cloud/find-dm-space-user-cred.js
index 7197ada0..b60fefd1 100644
--- a/chat/client-libraries/cloud/find-dm-space-user-cred.js
+++ b/chat/client-libraries/cloud/find-dm-space-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.spaces.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.spaces.readonly',
+];
 
 // This sample shows how to find a Direct Message space with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_find_dm_space_user_cred]
diff --git a/chat/client-libraries/cloud/get-attachment-app-cred.js b/chat/client-libraries/cloud/get-attachment-app-cred.js
index 52c474ef..cc23d7bf 100644
--- a/chat/client-libraries/cloud/get-attachment-app-cred.js
+++ b/chat/client-libraries/cloud/get-attachment-app-cred.js
@@ -37,6 +37,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_attachment_app_cred]
diff --git a/chat/client-libraries/cloud/get-custom-emoji-user-cred.js b/chat/client-libraries/cloud/get-custom-emoji-user-cred.js
index c6f2a630..2aa583c9 100644
--- a/chat/client-libraries/cloud/get-custom-emoji-user-cred.js
+++ b/chat/client-libraries/cloud/get-custom-emoji-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.customemojis'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.customemojis',
+];
 
 // This sample shows how to get custom emoji with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_custom_emoji_user_cred]
diff --git a/chat/client-libraries/cloud/get-membership-app-cred.js b/chat/client-libraries/cloud/get-membership-app-cred.js
index 98855d4f..09d85aa3 100644
--- a/chat/client-libraries/cloud/get-membership-app-cred.js
+++ b/chat/client-libraries/cloud/get-membership-app-cred.js
@@ -37,6 +37,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_membership_app_cred]
diff --git a/chat/client-libraries/cloud/get-membership-user-cred.js b/chat/client-libraries/cloud/get-membership-user-cred.js
index f6bc87e0..7ab4aeb8 100644
--- a/chat/client-libraries/cloud/get-membership-user-cred.js
+++ b/chat/client-libraries/cloud/get-membership-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.memberships.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.memberships.readonly',
+];
 
 // This sample shows how to get membership with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_membership_user_cred]
diff --git a/chat/client-libraries/cloud/get-message-app-cred.js b/chat/client-libraries/cloud/get-message-app-cred.js
index e0c682ce..e30f9b10 100644
--- a/chat/client-libraries/cloud/get-message-app-cred.js
+++ b/chat/client-libraries/cloud/get-message-app-cred.js
@@ -37,6 +37,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_message_app_cred]
diff --git a/chat/client-libraries/cloud/get-message-user-cred.js b/chat/client-libraries/cloud/get-message-user-cred.js
index c7c8af0a..c123aab0 100644
--- a/chat/client-libraries/cloud/get-message-user-cred.js
+++ b/chat/client-libraries/cloud/get-message-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.readonly',
+];
 
 // This sample shows how to get message with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_message_user_cred]
diff --git a/chat/client-libraries/cloud/get-space-app-cred.js b/chat/client-libraries/cloud/get-space-app-cred.js
index 4f2ab6b2..d5ee5119 100644
--- a/chat/client-libraries/cloud/get-space-app-cred.js
+++ b/chat/client-libraries/cloud/get-space-app-cred.js
@@ -37,6 +37,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_space_app_cred]
diff --git a/chat/client-libraries/cloud/get-space-event-user-cred.js b/chat/client-libraries/cloud/get-space-event-user-cred.js
index 3e699975..bd1c6bbf 100644
--- a/chat/client-libraries/cloud/get-space-event-user-cred.js
+++ b/chat/client-libraries/cloud/get-space-event-user-cred.js
@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-// It may require modifications to work in your environment.
 
 // [START chat_get_space_event_user_cred]
 
@@ -25,7 +24,9 @@ const USER_AUTH_OAUTH_SCOPES = ['SCOPE_NAME'];
 // This sample shows how to get space event with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -40,6 +41,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_space_event_user_cred]
diff --git a/chat/client-libraries/cloud/get-space-notification-setting-user-cred.js b/chat/client-libraries/cloud/get-space-notification-setting-user-cred.js
index ea51e48a..acad0e31 100644
--- a/chat/client-libraries/cloud/get-space-notification-setting-user-cred.js
+++ b/chat/client-libraries/cloud/get-space-notification-setting-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.users.spacesettings'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.users.spacesettings',
+];
 
 // This sample shows how to get the space notification setting for the calling user
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s), replace the SPACE_NAME with an actual space name.
   const request = {
@@ -38,6 +42,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_space_notification_setting_user_cred]
diff --git a/chat/client-libraries/cloud/get-space-read-state-user-cred.js b/chat/client-libraries/cloud/get-space-read-state-user-cred.js
index 5228cbc4..dbbe9860 100644
--- a/chat/client-libraries/cloud/get-space-read-state-user-cred.js
+++ b/chat/client-libraries/cloud/get-space-read-state-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.users.readstate.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.users.readstate.readonly',
+];
 
 // This sample shows how to get the space read state for the calling user
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_space_read_state_user_cred]
diff --git a/chat/client-libraries/cloud/get-space-user-cred.js b/chat/client-libraries/cloud/get-space-user-cred.js
index 121af34e..d1fe1ff4 100644
--- a/chat/client-libraries/cloud/get-space-user-cred.js
+++ b/chat/client-libraries/cloud/get-space-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.spaces.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.spaces.readonly',
+];
 
 // This sample shows how to get space with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_space_user_cred]
diff --git a/chat/client-libraries/cloud/get-thread-read-state-user-cred.js b/chat/client-libraries/cloud/get-thread-read-state-user-cred.js
index 86ec394e..8a05f8c2 100644
--- a/chat/client-libraries/cloud/get-thread-read-state-user-cred.js
+++ b/chat/client-libraries/cloud/get-thread-read-state-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.users.readstate.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.users.readstate.readonly',
+];
 
 // This sample shows how to get the thread read state for a space and calling user
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -39,6 +43,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_get_thread_read_state_user_cred]
diff --git a/chat/client-libraries/cloud/list-custom-emojis-user-cred.js b/chat/client-libraries/cloud/list-custom-emojis-user-cred.js
index 06b1ab83..dcddd38d 100644
--- a/chat/client-libraries/cloud/list-custom-emojis-user-cred.js
+++ b/chat/client-libraries/cloud/list-custom-emojis-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.customemojis'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.customemojis',
+];
 
 // This sample shows how to get custom emoji with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -42,6 +46,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_custom_emojis_user_cred]
diff --git a/chat/client-libraries/cloud/list-memberships-app-cred.js b/chat/client-libraries/cloud/list-memberships-app-cred.js
index b6061582..89c8664f 100644
--- a/chat/client-libraries/cloud/list-memberships-app-cred.js
+++ b/chat/client-libraries/cloud/list-memberships-app-cred.js
@@ -43,6 +43,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_memberships_app_cred]
diff --git a/chat/client-libraries/cloud/list-memberships-user-cred.js b/chat/client-libraries/cloud/list-memberships-user-cred.js
index 1d6e716c..d416d819 100644
--- a/chat/client-libraries/cloud/list-memberships-user-cred.js
+++ b/chat/client-libraries/cloud/list-memberships-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.memberships.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.memberships.readonly',
+];
 
 // This sample shows how to list memberships with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -45,6 +49,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_memberships_user_cred]
diff --git a/chat/client-libraries/cloud/list-messages-user-cred.js b/chat/client-libraries/cloud/list-messages-user-cred.js
index 3e333112..4387e670 100644
--- a/chat/client-libraries/cloud/list-messages-user-cred.js
+++ b/chat/client-libraries/cloud/list-messages-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.readonly',
+];
 
 // This sample shows how to list messages with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -42,6 +46,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_messages_user_cred]
diff --git a/chat/client-libraries/cloud/list-reactions-user-cred.js b/chat/client-libraries/cloud/list-reactions-user-cred.js
index 02fda27c..f778c939 100644
--- a/chat/client-libraries/cloud/list-reactions-user-cred.js
+++ b/chat/client-libraries/cloud/list-reactions-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages.reactions.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages.reactions.readonly',
+];
 
 // This sample shows how to list reactions to a message with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -42,6 +46,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_reactions_user_cred]
diff --git a/chat/client-libraries/cloud/list-space-events-user-cred.js b/chat/client-libraries/cloud/list-space-events-user-cred.js
index e224ba1e..806bd344 100644
--- a/chat/client-libraries/cloud/list-space-events-user-cred.js
+++ b/chat/client-libraries/cloud/list-space-events-user-cred.js
@@ -28,14 +28,17 @@ const USER_AUTH_OAUTH_SCOPES = [
 // This sample shows how to list space events with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
     // Replace SPACE_NAME here
     parent: 'spaces/SPACE_NAME',
     // A required filter. Filters events about new memberships and messages
-    filter: 'eventTypes:"google.workspace.chat.membership.v1.created" OR eventTypes:"google.workspace.chat.message.v1.created"',
+    filter:
+      'eventTypes:"google.workspace.chat.membership.v1.created" OR eventTypes:"google.workspace.chat.message.v1.created"',
   };
 
   // Make the request
@@ -48,6 +51,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_space_events_user_cred]
diff --git a/chat/client-libraries/cloud/list-spaces-app-cred.js b/chat/client-libraries/cloud/list-spaces-app-cred.js
index 3abbcd1c..e4c66984 100644
--- a/chat/client-libraries/cloud/list-spaces-app-cred.js
+++ b/chat/client-libraries/cloud/list-spaces-app-cred.js
@@ -40,6 +40,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_spaces_app_cred]
diff --git a/chat/client-libraries/cloud/list-spaces-user-cred.js b/chat/client-libraries/cloud/list-spaces-user-cred.js
index c017874d..141c193e 100644
--- a/chat/client-libraries/cloud/list-spaces-user-cred.js
+++ b/chat/client-libraries/cloud/list-spaces-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.spaces.readonly'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.spaces.readonly',
+];
 
 // This sample shows how to list spaces with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -42,6 +46,6 @@ async function main() {
   }
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_list_spaces_user_cred]
diff --git a/chat/client-libraries/cloud/package.json b/chat/client-libraries/cloud/package.json
index 1b6d71f9..2b30c3b4 100644
--- a/chat/client-libraries/cloud/package.json
+++ b/chat/client-libraries/cloud/package.json
@@ -57,11 +57,11 @@
   "dependencies": {
     "@google-apps/chat": "catalog:",
     "@grpc/grpc-js": "catalog:",
-    "google-auth-library": "catalog:",
     "open": "catalog:",
     "server-destroy": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/chat/client-libraries/cloud/set-up-space-user-cred.js b/chat/client-libraries/cloud/set-up-space-user-cred.js
index b294516a..714b006a 100644
--- a/chat/client-libraries/cloud/set-up-space-user-cred.js
+++ b/chat/client-libraries/cloud/set-up-space-user-cred.js
@@ -19,13 +19,17 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.spaces.create'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.spaces.create',
+];
 
 // This sample shows how to set up a named space with one initial member
 // with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -34,13 +38,15 @@ async function main() {
       // Replace DISPLAY_NAME here.
       displayName: 'DISPLAY_NAME',
     },
-    memberships: [{
-      member: {
-        // Replace USER_NAME here.
-        name: 'users/USER_NAME',
-        type: 'HUMAN',
+    memberships: [
+      {
+        member: {
+          // Replace USER_NAME here.
+          name: 'users/USER_NAME',
+          type: 'HUMAN',
+        },
       },
-    }],
+    ],
   };
 
   // Make the request
@@ -50,6 +56,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_set_up_space_user_cred]
diff --git a/chat/client-libraries/cloud/tsconfig.json b/chat/client-libraries/cloud/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/chat/client-libraries/cloud/tsconfig.json
+++ b/chat/client-libraries/cloud/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/chat/client-libraries/cloud/update-membership-user-cred.js b/chat/client-libraries/cloud/update-membership-user-cred.js
index 5aef3fdf..3316947e 100644
--- a/chat/client-libraries/cloud/update-membership-user-cred.js
+++ b/chat/client-libraries/cloud/update-membership-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.memberships'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.memberships',
+];
 
 // This sample shows how to update a membership with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -47,6 +51,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_update_membership_user_cred]
diff --git a/chat/client-libraries/cloud/update-message-app-cred.js b/chat/client-libraries/cloud/update-message-app-cred.js
index fd379d28..189595a4 100644
--- a/chat/client-libraries/cloud/update-message-app-cred.js
+++ b/chat/client-libraries/cloud/update-message-app-cred.js
@@ -30,10 +30,17 @@ async function main() {
       // Replace SPACE_NAME and MESSAGE_NAME here
       name: 'spaces/SPACE_NAME/messages/MESSAGE_NAME',
       text: 'Text updated with app credential!',
-      cardsV2: [{card: {header: {
-        title: 'Card updated with app credential!',
-        imageUrl: 'https://fonts.gstatic.com/s/i/short-term/release/googlesymbols/info/default/24px.svg',
-      }}}],
+      cardsV2: [
+        {
+          card: {
+            header: {
+              title: 'Card updated with app credential!',
+              imageUrl:
+                'https://fonts.gstatic.com/s/i/short-term/release/googlesymbols/info/default/24px.svg',
+            },
+          },
+        },
+      ],
     },
     // The field paths to update. Separate multiple values with commas or use
     // `*` to update all field paths.
@@ -50,6 +57,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_update_message_app_cred]
diff --git a/chat/client-libraries/cloud/update-message-user-cred.js b/chat/client-libraries/cloud/update-message-user-cred.js
index 88b61408..96c6cce9 100644
--- a/chat/client-libraries/cloud/update-message-user-cred.js
+++ b/chat/client-libraries/cloud/update-message-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.messages'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.messages',
+];
 
 // This sample shows how to update a message with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -48,6 +52,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_update_message_user_cred]
diff --git a/chat/client-libraries/cloud/update-space-notification-setting-user-cred.js b/chat/client-libraries/cloud/update-space-notification-setting-user-cred.js
index c68d4c93..37ab02a2 100644
--- a/chat/client-libraries/cloud/update-space-notification-setting-user-cred.js
+++ b/chat/client-libraries/cloud/update-space-notification-setting-user-cred.js
@@ -47,6 +47,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_update_space_notification_setting_user_cred]
diff --git a/chat/client-libraries/cloud/update-space-read-state-user-cred.js b/chat/client-libraries/cloud/update-space-read-state-user-cred.js
index 66146649..559e0f5d 100644
--- a/chat/client-libraries/cloud/update-space-read-state-user-cred.js
+++ b/chat/client-libraries/cloud/update-space-read-state-user-cred.js
@@ -19,12 +19,16 @@
 
 import {createClientWithUserCredentials} from './authentication-utils.js';
 
-const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.users.readstate'];
+const USER_AUTH_OAUTH_SCOPES = [
+  'https://www.googleapis.com/auth/chat.users.readstate',
+];
 
 // This sample shows how to update a space read state for the calling user
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const timestamp = new Date('2000-01-01').getTime();
@@ -50,6 +54,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_update_space_read_state_user_cred]
diff --git a/chat/client-libraries/cloud/update-space-user-cred.js b/chat/client-libraries/cloud/update-space-user-cred.js
index c4891b28..a376f082 100644
--- a/chat/client-libraries/cloud/update-space-user-cred.js
+++ b/chat/client-libraries/cloud/update-space-user-cred.js
@@ -24,7 +24,9 @@ const USER_AUTH_OAUTH_SCOPES = ['https://www.googleapis.com/auth/chat.spaces'];
 // This sample shows how to update a space with user credential
 async function main() {
   // Create a client
-  const chatClient = await createClientWithUserCredentials(USER_AUTH_OAUTH_SCOPES);
+  const chatClient = await createClientWithUserCredentials(
+      USER_AUTH_OAUTH_SCOPES,
+  );
 
   // Initialize request argument(s)
   const request = {
@@ -48,6 +50,6 @@ async function main() {
   console.log(response);
 }
 
-main().catch(console.error);
+await main();
 
 // [END chat_update_space_user_cred]
diff --git a/chat/quickstart/index.js b/chat/quickstart/index.js
index 1b10b255..34ff6142 100644
--- a/chat/quickstart/index.js
+++ b/chat/quickstart/index.js
@@ -16,85 +16,26 @@
 
 // [START chat_quickstart]
 
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
-import {authenticate} from '@google-cloud/local-auth';
+import path from 'node:path';
+import process from 'node:process';
 import {ChatServiceClient} from '@google-apps/chat';
-import {auth} from 'google-auth-library';
+import {authenticate} from '@google-cloud/local-auth';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/chat.spaces.readonly'];
-
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return auth.fromJSON(credentials);
-  } catch (err) {
-    console.log(err);
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
- * @return {Promise<OAuth2Client>}
+ * Lists spaces with user credential.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listSpaces() {
+  const authClient = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Lists spaces with user credential.
- * @param {OAuth2Client} authClient An authorized OAuth2 client.
- */
-async function listSpaces(authClient) {
   // Create a client
   const chatClient = new ChatServiceClient({
-    authClient: authClient,
+    authClient,
     scopes: SCOPES,
   });
 
@@ -114,6 +55,6 @@ async function listSpaces(authClient) {
   }
 }
 
-authorize().then(listSpaces).catch(console.error);
+await listSpaces();
 
 // [END chat_quickstart]
diff --git a/chat/quickstart/package.json b/chat/quickstart/package.json
index 47df5462..d78ee633 100644
--- a/chat/quickstart/package.json
+++ b/chat/quickstart/package.json
@@ -13,6 +13,7 @@
     "@google-cloud/local-auth": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/chat/quickstart/tsconfig.json b/chat/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/chat/quickstart/tsconfig.json
+++ b/chat/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/classroom/quickstart/index.js b/classroom/quickstart/index.js
index a9caa633..b871287b 100644
--- a/classroom/quickstart/index.js
+++ b/classroom/quickstart/index.js
@@ -13,86 +13,30 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START classroom_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/classroom.courses.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the first 10 courses the user has access to.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listCourses() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
-
-/**
- * Lists the first 10 courses the user has access to.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listCourses(auth) {
   const classroom = google.classroom({version: 'v1', auth});
-  const res = await classroom.courses.list({
+  const result = await classroom.courses.list({
     pageSize: 10,
   });
-  const courses = res.data.courses;
+  const courses = result.data.courses;
   if (!courses || courses.length === 0) {
     console.log('No courses found.');
     return;
@@ -103,5 +47,5 @@ async function listCourses(auth) {
   });
 }
 
-authorize().then(listCourses).catch(console.error);
+await listCourses();
 // [END classroom_quickstart]
diff --git a/classroom/quickstart/package.json b/classroom/quickstart/package.json
index 5ff44a50..acdf56e8 100644
--- a/classroom/quickstart/package.json
+++ b/classroom/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/classroom/quickstart/tsconfig.json b/classroom/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/classroom/quickstart/tsconfig.json
+++ b/classroom/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/docs/quickstart/index.js b/docs/quickstart/index.js
index 2cb4152f..de52c150 100644
--- a/docs/quickstart/index.js
+++ b/docs/quickstart/index.js
@@ -13,87 +13,33 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START docs_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/documents.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Prints the title of a sample doc:
+ * https://docs.google.com/document/d/195j9eDD3ccgjQRttHhJPymLJUCOUjs-jmwTrekvdjFE/edit
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function printDocTitle() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
-
-/**
- * Prints the title of a sample doc:
- * https://docs.google.com/document/d/195j9eDD3ccgjQRttHhJPymLJUCOUjs-jmwTrekvdjFE/edit
- * @param {google.auth.OAuth2} auth The authenticated Google OAuth 2.0 client.
- */
-async function printDocTitle(auth) {
   const docs = google.docs({version: 'v1', auth});
-  const res = await docs.documents.get({
+  const result = await docs.documents.get({
     documentId: '195j9eDD3ccgjQRttHhJPymLJUCOUjs-jmwTrekvdjFE',
   });
-  console.log(`The title of the document is: ${res.data.title}`);
+  console.log(`The title of the document is: ${result.data.title}`);
 }
 
-authorize().then(printDocTitle).catch(console.error);
+await printDocTitle();
+
 // [END docs_quickstart]
diff --git a/docs/quickstart/package.json b/docs/quickstart/package.json
index 48b06087..2e94a739 100644
--- a/docs/quickstart/package.json
+++ b/docs/quickstart/package.json
@@ -9,9 +9,11 @@
     "check": "tsc --noEmit"
   },
   "dependencies": {
+    "@google-cloud/local-auth": "catalog:",
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/docs/quickstart/tsconfig.json b/docs/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/docs/quickstart/tsconfig.json
+++ b/docs/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/activity-v2/index.js b/drive/activity-v2/index.js
index 6730d42d..6ab4ac03 100644
--- a/drive/activity-v2/index.js
+++ b/drive/activity-v2/index.js
@@ -13,103 +13,40 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START drive_activity_v2_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/drive.activity.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the recent activity in your Google Drive.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listDriveActivity() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
-
-/**
- * Lists the recent activity in your Google Drive.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listDriveActivity(auth) {
   const service = google.driveactivity({version: 'v2', auth});
   const params = {
     pageSize: 10,
   };
-  const res = await service.activity.query({requestBody: params});
-  const activities = res.data.activities;
+  const result = await service.activity.query({requestBody: params});
+  const activities = result.data.activities;
   if (!activities || activities.length === 0) {
     console.log('No activity.');
     return;
   }
   console.log('Recent activity:');
-  activities.forEach((activity) => {
-    const time = getTimeInfo(activity);
-    const action = getActionInfo(activity.primaryActionDetail);
-    const actors = activity.actors.map(getActorInfo);
-    const targets = activity.targets.map(getTargetInfo);
-    console.log(
-        `${time}: ${truncated(actors)}, ${action}, ` + `${truncated(targets)}`,
-    );
-  });
+
+  console.log(JSON.stringify(activities, null, 2));
 }
 
-authorize().then(listDriveActivity).catch(console.error);
+await listDriveActivity();
 
 // [END drive_activity_v2_quickstart]
diff --git a/drive/activity-v2/package.json b/drive/activity-v2/package.json
index a2362aaf..28e0729b 100644
--- a/drive/activity-v2/package.json
+++ b/drive/activity-v2/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/drive/activity-v2/tsconfig.json b/drive/activity-v2/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/drive/activity-v2/tsconfig.json
+++ b/drive/activity-v2/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/quickstart/index.js b/drive/quickstart/index.js
index 3a31ae6a..0338e777 100644
--- a/drive/quickstart/index.js
+++ b/drive/quickstart/index.js
@@ -13,96 +13,42 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START drive_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/drive.metadata.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the names and IDs of up to 10 files.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listFiles() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Lists the names and IDs of up to 10 files.
- * @param {OAuth2Client} authClient An authorized OAuth2 client.
- */
-async function listFiles(authClient) {
-  const drive = google.drive({version: 'v3', auth: authClient});
-  const res = await drive.files.list({
+  const drive = google.drive({version: 'v3', auth});
+  const result = await drive.files.list({
     pageSize: 10,
     fields: 'nextPageToken, files(id, name)',
   });
-  const files = res.data.files;
-  if (files.length === 0) {
+  const files = result.data.files;
+  if (!files) {
     console.log('No files found.');
     return;
   }
 
   console.log('Files:');
-  files.map((file) => {
+  files.forEach((file) => {
     console.log(`${file.name} (${file.id})`);
   });
 }
 
-authorize().then(listFiles).catch(console.error);
+await listFiles();
 // [END drive_quickstart]
diff --git a/drive/quickstart/package.json b/drive/quickstart/package.json
index 013047e2..c0b30fab 100644
--- a/drive/quickstart/package.json
+++ b/drive/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/drive/quickstart/tsconfig.json b/drive/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/drive/quickstart/tsconfig.json
+++ b/drive/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v2/appdata_snippets/fetch_appdata_folder.js b/drive/snippets/drive_v2/appdata_snippets/fetch_appdata_folder.js
index 07d7498a..2ded0f2d 100644
--- a/drive/snippets/drive_v2/appdata_snippets/fetch_appdata_folder.js
+++ b/drive/snippets/drive_v2/appdata_snippets/fetch_appdata_folder.js
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_fetch_appdata_folder]
 
-/**
- * List out application data folder and prints folder ID
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * List out application data folder and prints folder ID
+ */
 async function fetchAppdataFolder() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -29,17 +30,12 @@ async function fetchAppdataFolder() {
     scopes: 'https://www.googleapis.com/auth/drive.appdata',
   });
   const service = google.drive({version: 'v2', auth});
-  try {
-    const file = await service.files.get({
-      fileId: 'appDataFolder',
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.get({
+    fileId: 'appDataFolder',
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_fetch_appdata_folder]
 
diff --git a/drive/snippets/drive_v2/appdata_snippets/list_appdata.js b/drive/snippets/drive_v2/appdata_snippets/list_appdata.js
index 0d4e1d4f..12c2cf54 100644
--- a/drive/snippets/drive_v2/appdata_snippets/list_appdata.js
+++ b/drive/snippets/drive_v2/appdata_snippets/list_appdata.js
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_list_appdata]
 
-/**
- * List all files inserted in the application data folder
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * List all files inserted in the application data folder
+ */
 async function listAppdata() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -29,20 +30,17 @@ async function listAppdata() {
     scopes: 'https://www.googleapis.com/auth/drive.appdata',
   });
   const service = google.drive({version: 'v2', auth});
-  try {
-    const res = await service.files.list({
-      spaces: 'appDataFolder',
-      fields: 'nextPageToken, items(id, title)',
-      pageSize: 100,
-    });
-    res.data.items.forEach(function(file) {
-      console.log('Found file:', file.title, file.id);
-    });
-    return res.data.items;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const result = await service.files.list({
+    spaces: 'appDataFolder',
+    fields: 'nextPageToken, items(id, title)',
+    maxResults: 100,
+  });
+
+  (result.data.items ?? []).forEach((file) => {
+    console.log('Found file:', file.title, file.id);
+  });
+
+  return result.data.items;
 }
 // [END drive_list_appdata]
 
diff --git a/drive/snippets/drive_v2/appdata_snippets/package.json b/drive/snippets/drive_v2/appdata_snippets/package.json
index 318a44da..d831ee82 100644
--- a/drive/snippets/drive_v2/appdata_snippets/package.json
+++ b/drive/snippets/drive_v2/appdata_snippets/package.json
@@ -8,9 +8,13 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v2/appdata_snippets/tsconfig.json b/drive/snippets/drive_v2/appdata_snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v2/appdata_snippets/tsconfig.json
+++ b/drive/snippets/drive_v2/appdata_snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v2/appdata_snippets/upload_appdata.js b/drive/snippets/drive_v2/appdata_snippets/upload_appdata.js
index 65b29b48..33d706ef 100644
--- a/drive/snippets/drive_v2/appdata_snippets/upload_appdata.js
+++ b/drive/snippets/drive_v2/appdata_snippets/upload_appdata.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_appdata]
 
-/**
- * Insert a file in the application data folder and prints file Id.
- * */
-import fs from 'fs';
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Insert a file in the application data folder and prints file Id.
+ */
 async function uploadAppdata() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -42,18 +43,13 @@ async function uploadAppdata() {
     mimeType: 'application/json',
     body: fs.createReadStream('files/config.json'),
   };
-  try {
-    const file = await service.files.insert({
-      resource: fileMetadata,
-      media: media,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.insert({
+    requestBody: fileMetadata,
+    media,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_appdata]
 
diff --git a/drive/snippets/drive_v2/change_snippets/fetch_changes.js b/drive/snippets/drive_v2/change_snippets/fetch_changes.js
index a64d1c8d..3418c107 100644
--- a/drive/snippets/drive_v2/change_snippets/fetch_changes.js
+++ b/drive/snippets/drive_v2/change_snippets/fetch_changes.js
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_fetch_changes]
 
-/**
- * Retrieve the list of changes for the currently authenticated user
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Retrieve the list of changes for the currently authenticated user
+ */
 async function fetchChanges() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -30,20 +31,15 @@ async function fetchChanges() {
   });
   const service = google.drive({version: 'v2', auth});
   let pageToken;
-  try {
-    const res = await service.changes.list({
-      pageToken: pageToken,
-      fields: '*',
-    });
-    // Process changes
-    res.data.items.forEach(function(change) {
-      console.log('Change found for file:', change.fileId);
-    });
-    return res.data.items;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const result = await service.changes.list({
+    pageToken,
+    fields: '*',
+  });
+  // Process changes
+  (result.data.items ?? []).forEach((change) => {
+    console.log('Change found for file:', change.fileId);
+  });
+  return result.data.items;
 }
 // [END drive_fetch_changes]
 
diff --git a/drive/snippets/drive_v2/change_snippets/fetch_start_page_token.js b/drive/snippets/drive_v2/change_snippets/fetch_start_page_token.js
index 01102537..d39dda8e 100644
--- a/drive/snippets/drive_v2/change_snippets/fetch_start_page_token.js
+++ b/drive/snippets/drive_v2/change_snippets/fetch_start_page_token.js
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_fetch_start_page_token]
 
-/**
- * Retrieve page token for the current state of the account
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Retrieve page token for the current state of the account
+ */
 async function fetchStartPageToken() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -29,14 +30,9 @@ async function fetchStartPageToken() {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v2', auth});
-  try {
-    const res = await service.changes.getStartPageToken();
-    console.log('Start token:', res.data.startPageToken);
-    return res.data.startPageToken;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const result = await service.changes.getStartPageToken();
+  console.log('Start token:', result.data.startPageToken);
+  return result.data.startPageToken;
 }
 // [END drive_fetch_start_page_token]
 
diff --git a/drive/snippets/drive_v2/change_snippets/package.json b/drive/snippets/drive_v2/change_snippets/package.json
index 784eeb7a..b2f750ee 100644
--- a/drive/snippets/drive_v2/change_snippets/package.json
+++ b/drive/snippets/drive_v2/change_snippets/package.json
@@ -8,9 +8,13 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v2/change_snippets/tsconfig.json b/drive/snippets/drive_v2/change_snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v2/change_snippets/tsconfig.json
+++ b/drive/snippets/drive_v2/change_snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v2/drive_snippets/create_drive.js b/drive/snippets/drive_v2/drive_snippets/create_drive.js
index 649749d9..ab02adb8 100644
--- a/drive/snippets/drive_v2/drive_snippets/create_drive.js
+++ b/drive/snippets/drive_v2/drive_snippets/create_drive.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_create_drive]
 
-/**
- * Create a drive.
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 import {v4 as uuid} from 'uuid';
 
+/**
+ * Create a drive.
+ */
 async function createDrive() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -35,18 +36,13 @@ async function createDrive() {
     name: 'Project resources',
   };
   const requestId = uuid();
-  try {
-    const Drive = await service.drives.insert({
-      resource: driveMetadata,
-      requestId: requestId,
-      fields: 'id',
-    });
-    console.log('Drive Id:', Drive.data.id);
-    return Drive.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const Drive = await service.drives.insert({
+    requestBody: driveMetadata,
+    requestId,
+    fields: 'id',
+  });
+  console.log('Drive Id:', Drive.data.id);
+  return Drive.data.id;
 }
 // [END drive_create_drive]
 
diff --git a/drive/snippets/drive_v2/drive_snippets/package.json b/drive/snippets/drive_v2/drive_snippets/package.json
index 4979dcd6..0ad77215 100644
--- a/drive/snippets/drive_v2/drive_snippets/package.json
+++ b/drive/snippets/drive_v2/drive_snippets/package.json
@@ -8,9 +8,14 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "@types/uuid": "^10.0.0",
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v2/drive_snippets/recover_drives.js b/drive/snippets/drive_v2/drive_snippets/recover_drives.js
index bb29a4f8..0e495893 100644
--- a/drive/snippets/drive_v2/drive_snippets/recover_drives.js
+++ b/drive/snippets/drive_v2/drive_snippets/recover_drives.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_recover_drives]
 
-/**
- * Find all shared drives without an organizer and add one.
- * @param{string} userEmail user ID
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Find all shared drives without an organizer and add one.
+ * @param{string} userEmail user ID
+ */
 async function recoverDrives(userEmail) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -30,42 +31,33 @@ async function recoverDrives(userEmail) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v2', auth});
-  const drives = [];
+
   const newOrganizerPermission = {
     type: 'user',
     role: 'organizer',
     value: userEmail, // Example: 'user@example.com'
   };
 
-  let pageToken = null;
-  try {
-    const res = await service.drives.list({
-      q: 'organizerCount = 0',
-      fields: 'nextPageToken, items(id, name)',
+  const result = await service.drives.list({
+    q: 'organizerCount = 0',
+    fields: 'nextPageToken, items(id, name)',
+    useDomainAdminAccess: true,
+  });
+
+  for (const drive of result.data.items ?? []) {
+    if (!drive.id) {
+      continue;
+    }
+
+    console.log('Found shared drive without organizer:', drive.name, drive.id);
+    await service.permissions.insert({
+      requestBody: newOrganizerPermission,
+      fileId: drive.id,
       useDomainAdminAccess: true,
-      pageToken: pageToken,
+      supportsAllDrives: true,
+      fields: 'id',
     });
-    Array.prototype.push.apply(drives, res.data.items);
-    for (const drive of res.data.items) {
-      console.log(
-          'Found shared drive without organizer:',
-          drive.name,
-          drive.id,
-      );
-      await service.permissions.insert({
-        resource: newOrganizerPermission,
-        fileId: drive.id,
-        useDomainAdminAccess: true,
-        supportsAllDrives: true,
-        fields: 'id',
-      });
-    }
-    pageToken = res.nextPageToken;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
   }
-  return drives;
 }
 // [END drive_recover_drives]
 
diff --git a/drive/snippets/drive_v2/drive_snippets/tsconfig.json b/drive/snippets/drive_v2/drive_snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v2/drive_snippets/tsconfig.json
+++ b/drive/snippets/drive_v2/drive_snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v2/file snippets/create_folder.js b/drive/snippets/drive_v2/file snippets/create_folder.js
index 553c78e4..776667f8 100644
--- a/drive/snippets/drive_v2/file snippets/create_folder.js	
+++ b/drive/snippets/drive_v2/file snippets/create_folder.js	
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_create_folder]
 
-/**
- * Create a folder and prints the folder ID
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Create a folder and prints the folder ID
+ */
 async function createFolder() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -33,17 +34,12 @@ async function createFolder() {
     title: 'Invoices',
     mimeType: 'application/vnd.google-apps.folder',
   };
-  try {
-    const file = await service.files.insert({
-      resource: fileMetadata,
-      fields: 'id',
-    });
-    console.log('Folder Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.insert({
+    requestBody: fileMetadata,
+    fields: 'id',
+  });
+  console.log('Folder Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_create_folder]
 
diff --git a/drive/snippets/drive_v2/file snippets/create_shortcut.js b/drive/snippets/drive_v2/file snippets/create_shortcut.js
index d3b8825c..68bb495a 100644
--- a/drive/snippets/drive_v2/file snippets/create_shortcut.js	
+++ b/drive/snippets/drive_v2/file snippets/create_shortcut.js	
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_create_shortcut]
 
-/**
- * Create a third party shortcut
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Create a third party shortcut
+ */
 async function createShortcut() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -33,18 +34,12 @@ async function createShortcut() {
     title: 'Project plan',
     mimeType: 'application/vnd.google-apps.drive-sdk',
   };
-
-  try {
-    const file = await service.files.insert({
-      resource: fileMetadata,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.insert({
+    requestBody: fileMetadata,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_create_shortcut]
 
diff --git a/drive/snippets/drive_v2/file snippets/download_file.js b/drive/snippets/drive_v2/file snippets/download_file.js
index 505c6e89..38640b8c 100644
--- a/drive/snippets/drive_v2/file snippets/download_file.js	
+++ b/drive/snippets/drive_v2/file snippets/download_file.js	
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_download_file]
 
-/**
- * Downloads a file
- * @param{string} fileId file ID
- * @return{obj} file status
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Downloads a file
+ * @param{string} fileId file ID
+ * @return{Promise<number>} file status
+ */
 async function downloadFile(fileId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -31,18 +32,12 @@ async function downloadFile(fileId) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v2', auth});
-
-  try {
-    const file = await service.files.get({
-      fileId: fileId,
-      alt: 'media',
-    });
-    console.log(file.status);
-    return file.status;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.get({
+    fileId,
+    alt: 'media',
+  });
+  console.log(file.status);
+  return file.status;
 }
 // [END drive_download_file]
 
diff --git a/drive/snippets/drive_v2/file snippets/export_pdf.js b/drive/snippets/drive_v2/file snippets/export_pdf.js
index ebfe94bd..8694fcae 100644
--- a/drive/snippets/drive_v2/file snippets/export_pdf.js	
+++ b/drive/snippets/drive_v2/file snippets/export_pdf.js	
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_export_pdf]
 
-/**
- * Download a Document file in PDF format
- * @param{string} fileId file ID
- * @return{obj} file status
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Download a Document file in PDF format
+ * @param{string} fileId file ID
+ * @return {Promise<object>} file status
+ */
 async function exportPdf(fileId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -31,18 +32,12 @@ async function exportPdf(fileId) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v2', auth});
-
-  try {
-    const result = await service.files.export({
-      fileId: fileId,
-      mimeType: 'application/pdf',
-    });
-    console.log(result.status);
-    return result;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const result = await service.files.export({
+    fileId,
+    mimeType: 'application/pdf',
+  });
+  console.log(result.status);
+  return result;
 }
 // [END drive_export_pdf]
 
diff --git a/drive/snippets/drive_v2/file snippets/move_file_to_folder.js b/drive/snippets/drive_v2/file snippets/move_file_to_folder.js
index 21ba6635..adcc62c4 100644
--- a/drive/snippets/drive_v2/file snippets/move_file_to_folder.js	
+++ b/drive/snippets/drive_v2/file snippets/move_file_to_folder.js	
@@ -13,17 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_move_file_to_folder]
 
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Change the file's modification timestamp.
  * @param{string} fileId Id of the file to move
  * @param{string} folderId Id of the folder to move
- * @return{obj} file status
- * */
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
-
+ * @return{Promise<number>} file status
+ */
 async function moveFileToFolder(fileId, folderId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -32,32 +33,24 @@ async function moveFileToFolder(fileId, folderId) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v2', auth});
+  // Retrieve the existing parents to remove
+  const file = await service.files.get({
+    fileId,
+    fields: 'parents',
+  });
 
-  try {
-    // Retrieve the existing parents to remove
-    const file = await service.files.get({
-      fileId: fileId,
-      fields: 'parents',
-    });
-
-    // Move the file to the new folder
-    const previousParents = file.data.parents
-        .map(function(parent) {
-          return parent.id;
-        })
-        .join(',');
-    const files = await service.files.update({
-      fileId: fileId,
-      addParents: folderId,
-      removeParents: previousParents,
-      fields: 'id, parents',
-    });
-    console.log(files.status);
-    return files.status;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  // Move the file to the new folder
+  const previousParents = (file.data.parents ?? [])
+      .map((parent) => parent.id)
+      .join(',');
+  const files = await service.files.update({
+    fileId,
+    addParents: folderId,
+    removeParents: previousParents,
+    fields: 'id, parents',
+  });
+  console.log(files.status);
+  return files.status;
 }
 // [END drive_move_file_to_folder]
 
diff --git a/drive/snippets/drive_v2/file snippets/package.json b/drive/snippets/drive_v2/file snippets/package.json
index 9dd196ae..5a643df8 100644
--- a/drive/snippets/drive_v2/file snippets/package.json	
+++ b/drive/snippets/drive_v2/file snippets/package.json	
@@ -8,9 +8,13 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v2/file snippets/search_file.js b/drive/snippets/drive_v2/file snippets/search_file.js
index 2f8b24b1..d949bdaa 100644
--- a/drive/snippets/drive_v2/file snippets/search_file.js	
+++ b/drive/snippets/drive_v2/file snippets/search_file.js	
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_search_file]
 
-/**
- * Search file in drive location
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Search file in drive location
+ */
 async function searchFile() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -29,23 +30,18 @@ async function searchFile() {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v2', auth});
-  const files = [];
-  const pageToken = null;
-  try {
-    const res = await service.files.list({
-      q: 'mimeType=\'image/jpeg\'',
-      fields: 'nextPageToken, items(id, title)',
-      spaces: 'drive',
-      pageToken: pageToken,
-    });
-    Array.prototype.push.apply(files, res.items);
-    res.data.items.forEach(function(file) {
-      console.log('Found file:', file.title, file.id);
-    });
-    return res.data.items;
-  } catch (err) {
-    throw err;
-  }
+
+  const pageToken = undefined;
+  const result = await service.files.list({
+    q: 'mimeType=\'image/jpeg\'',
+    fields: 'nextPageToken, items(id, title)',
+    spaces: 'drive',
+    pageToken,
+  });
+  (result.data.items ?? []).forEach((file) => {
+    console.log('Found file:', file.title, file.id);
+  });
+  return result.data.items;
 }
 // [END drive_search_file]
 
diff --git a/drive/snippets/drive_v2/file snippets/share_file.js b/drive/snippets/drive_v2/file snippets/share_file.js
index 7b1e41ca..3ecb26db 100644
--- a/drive/snippets/drive_v2/file snippets/share_file.js	
+++ b/drive/snippets/drive_v2/file snippets/share_file.js	
@@ -13,17 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_share_file]
 
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Download a Document file in PDF format
  * @param{string} fileId file ID
  * @param{string} targetUser username
  * @param{string} targetDomain domain
- * */
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
-
+ */
 async function shareFile(fileId, targetUser, targetDomain) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -54,8 +55,8 @@ async function shareFile(fileId, targetUser, targetDomain) {
   for (const permission of permissions) {
     try {
       const result = await service.permissions.insert({
-        resource: permission,
-        fileId: fileId,
+        requestBody: permission,
+        fileId,
         fields: 'id',
       });
       permissionIds.push(result.data.id);
diff --git a/drive/snippets/drive_v2/file snippets/touch_file.js b/drive/snippets/drive_v2/file snippets/touch_file.js
index 0c2e522c..90862fa9 100644
--- a/drive/snippets/drive_v2/file snippets/touch_file.js	
+++ b/drive/snippets/drive_v2/file snippets/touch_file.js	
@@ -13,17 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_touch_file]
 
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Change the file's modification timestamp.
  * @param{string} fileId ID of the file to change modified time
  * @param{string} timestamp Timestamp to override Modified date time of the file
- * @return{obj} modified timestamp
- * */
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
-
+ * @return{Promise<string|null|undefined>} modified timestamp
+ */
 async function touchFile(fileId, timestamp) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -32,23 +33,20 @@ async function touchFile(fileId, timestamp) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v2', auth});
+
   const fileMetadata = {
     modifiedDate: new Date().toISOString(),
+    modifiedTime: timestamp,
   };
-  fileMetadata.modifiedTime = timestamp;
-  try {
-    const file = await service.files.update({
-      fileId: fileId,
-      setModifiedDate: true,
-      resource: fileMetadata,
-      fields: 'id, modifiedDate',
-    });
-    console.log('Modified time:', file.data.modifiedDate);
-    return file.data.modifiedDate;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+
+  const file = await service.files.update({
+    fileId,
+    setModifiedDate: true,
+    requestBody: fileMetadata,
+    fields: 'id, modifiedDate',
+  });
+  console.log('Modified time:', file.data.modifiedDate);
+  return file.data.modifiedDate;
 }
 // [END drive_touch_file]
 
diff --git a/drive/snippets/drive_v2/file snippets/tsconfig.json b/drive/snippets/drive_v2/file snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v2/file snippets/tsconfig.json	
+++ b/drive/snippets/drive_v2/file snippets/tsconfig.json	
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v2/file snippets/upload_basic.js b/drive/snippets/drive_v2/file snippets/upload_basic.js
index 84f287be..f47d0e7c 100644
--- a/drive/snippets/drive_v2/file snippets/upload_basic.js	
+++ b/drive/snippets/drive_v2/file snippets/upload_basic.js	
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_basic]
 
-/**
- * Insert new file.
- * */
-import fs from 'fs';
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Insert new file.
+ */
 async function uploadBasic() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -37,18 +38,13 @@ async function uploadBasic() {
     mimeType: 'image/jpeg',
     body: fs.createReadStream('files/photo.jpg'),
   };
-  try {
-    const file = await service.files.insert({
-      resource: fileMetadata,
-      media: media,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.insert({
+    requestBody: fileMetadata,
+    media,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_basic]
 
diff --git a/drive/snippets/drive_v2/file snippets/upload_to_folder.js b/drive/snippets/drive_v2/file snippets/upload_to_folder.js
index fcb24dc5..aaf0a98c 100644
--- a/drive/snippets/drive_v2/file snippets/upload_to_folder.js	
+++ b/drive/snippets/drive_v2/file snippets/upload_to_folder.js	
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_to_folder]
 
-/**
- * Upload a file to the specified folder and prints file ID, folder ID
- * @param{string} folderId folder ID
- * */
-import fs from 'fs';
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Upload a file to the specified folder and prints file ID, folder ID
+ * @param{string} folderId folder ID
+ */
 async function uploadToFolder(folderId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -39,19 +40,13 @@ async function uploadToFolder(folderId) {
     mimeType: 'image/jpeg',
     body: fs.createReadStream('files/photo.jpg'),
   };
-
-  try {
-    const file = await service.files.insert({
-      resource: fileMetadata,
-      media: media,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.insert({
+    requestBody: fileMetadata,
+    media,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_to_folder]
 
diff --git a/drive/snippets/drive_v2/file snippets/upload_with_conversion.js b/drive/snippets/drive_v2/file snippets/upload_with_conversion.js
index 205b9794..ef47eb74 100644
--- a/drive/snippets/drive_v2/file snippets/upload_with_conversion.js	
+++ b/drive/snippets/drive_v2/file snippets/upload_with_conversion.js	
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_with_conversion]
 
-/**
- * Upload file with conversion
- * */
-import fs from 'fs';
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Upload file with conversion
+ */
 async function uploadWithConversion() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -38,19 +39,13 @@ async function uploadWithConversion() {
     mimeType: 'text/csv',
     body: fs.createReadStream('files/report.csv'),
   };
-
-  try {
-    const file = await service.files.insert({
-      resource: fileMetadata,
-      media: media,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.insert({
+    requestBody: fileMetadata,
+    media,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_with_conversion]
 export {uploadWithConversion};
diff --git a/drive/snippets/drive_v2/package.json b/drive/snippets/drive_v2/package.json
deleted file mode 100644
index e24b5e11..00000000
--- a/drive/snippets/drive_v2/package.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "name": "drive-snippets-drive-v2",
-  "version": "1.0.0",
-  "private": true,
-  "license": "Apache-2.0",
-  "type": "module",
-  "scripts": {
-    "check": "tsc --noEmit"
-  },
-  "devDependencies": {
-    "typescript": "catalog:"
-  },
-  "engines": {
-    "node": ">=20"
-  }
-}
\ No newline at end of file
diff --git a/drive/snippets/drive_v2/tsconfig.json b/drive/snippets/drive_v2/tsconfig.json
deleted file mode 100644
index e8c3a24a..00000000
--- a/drive/snippets/drive_v2/tsconfig.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
diff --git a/drive/snippets/drive_v3/appdata_snippets/fetch_appdata_folder.js b/drive/snippets/drive_v3/appdata_snippets/fetch_appdata_folder.js
index cced6287..3110db9a 100644
--- a/drive/snippets/drive_v3/appdata_snippets/fetch_appdata_folder.js
+++ b/drive/snippets/drive_v3/appdata_snippets/fetch_appdata_folder.js
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_fetch_appdata_folder]
 
-/**
- * List out application data folder and prints folder ID
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * List out application data folder and prints folder ID
+ */
 async function fetchAppdataFolder() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -29,17 +30,12 @@ async function fetchAppdataFolder() {
     scopes: 'https://www.googleapis.com/auth/drive.appdata',
   });
   const service = google.drive({version: 'v3', auth});
-  try {
-    const file = await service.files.get({
-      fileId: 'appDataFolder',
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.get({
+    fileId: 'appDataFolder',
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_fetch_appdata_folder]
 
diff --git a/drive/snippets/drive_v3/appdata_snippets/list_appdata.js b/drive/snippets/drive_v3/appdata_snippets/list_appdata.js
index bf5632bb..079ab7d7 100644
--- a/drive/snippets/drive_v3/appdata_snippets/list_appdata.js
+++ b/drive/snippets/drive_v3/appdata_snippets/list_appdata.js
@@ -13,14 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_list_appdata]
 
-/**
- * List all files inserted in the application data folder
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * List all files inserted in the application data folder
+ */
 async function listAppdata() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -29,20 +30,15 @@ async function listAppdata() {
     scopes: 'https://www.googleapis.com/auth/drive.appdata',
   });
   const service = google.drive({version: 'v3', auth});
-  try {
-    const res = await service.files.list({
-      spaces: 'appDataFolder',
-      fields: 'nextPageToken, files(id, name)',
-      pageSize: 100,
-    });
-    res.data.files.forEach(function(file) {
-      console.log('Found file:', file.name, file.id);
-    });
-    return res.data.files;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const result = await service.files.list({
+    spaces: 'appDataFolder',
+    fields: 'nextPageToken, files(id, name)',
+    pageSize: 100,
+  });
+  (result.data.files ?? []).forEach((file) => {
+    console.log('Found file:', file.name, file.id);
+  });
+  return result.data.files;
 }
 // [END drive_list_appdata]
 
diff --git a/drive/snippets/drive_v3/appdata_snippets/package.json b/drive/snippets/drive_v3/appdata_snippets/package.json
index 9e512f7d..82661140 100644
--- a/drive/snippets/drive_v3/appdata_snippets/package.json
+++ b/drive/snippets/drive_v3/appdata_snippets/package.json
@@ -8,9 +8,13 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v3/appdata_snippets/tsconfig.json b/drive/snippets/drive_v3/appdata_snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v3/appdata_snippets/tsconfig.json
+++ b/drive/snippets/drive_v3/appdata_snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v3/appdata_snippets/upload_appdata.js b/drive/snippets/drive_v3/appdata_snippets/upload_appdata.js
index a3136ade..58ff720d 100644
--- a/drive/snippets/drive_v3/appdata_snippets/upload_appdata.js
+++ b/drive/snippets/drive_v3/appdata_snippets/upload_appdata.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_appdata]
 
-/**
- * Insert a file in the application data folder and prints file Id
- * */
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
-import fs from 'fs';
 
+/**
+ * Insert a file in the application data folder and prints file Id
+ */
 async function uploadAppdata() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -38,18 +39,13 @@ async function uploadAppdata() {
     mimeType: 'application/json',
     body: fs.createReadStream('files/config.json'),
   };
-  try {
-    const file = await service.files.create({
-      requestBody: fileMetadata,
-      media: media,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.create({
+    requestBody: fileMetadata,
+    media,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_appdata]
 
diff --git a/drive/snippets/drive_v3/change_snippets/fetch_changes.js b/drive/snippets/drive_v3/change_snippets/fetch_changes.js
index 27f1299b..ffe025b3 100644
--- a/drive/snippets/drive_v3/change_snippets/fetch_changes.js
+++ b/drive/snippets/drive_v3/change_snippets/fetch_changes.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_fetch_changes]
 
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Retrieve the list of changes for the currently authenticated user.
  * @param {string} savedStartPageToken page token got after executing fetch_start_page_token.js file
  **/
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
-
 async function fetchChanges(savedStartPageToken) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -30,23 +31,18 @@ async function fetchChanges(savedStartPageToken) {
     scopes: 'https://www.googleapis.com/auth/drive.readonly',
   });
   const service = google.drive({version: 'v3', auth});
-  try {
-    let pageToken = savedStartPageToken;
-    do {
-      const res = await service.changes.list({
-        pageToken: savedStartPageToken,
-        fields: '*',
-      });
-      res.data.changes.forEach((change) => {
-        console.log('change found for file: ', change.fileId);
-      });
-      pageToken = res.data.newStartPageToken;
-      return pageToken;
-    } while (pageToken);
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  /** @type {string|null|undefined} */
+  let pageToken = savedStartPageToken;
+  do {
+    const result = await service.changes.list({
+      pageToken: savedStartPageToken,
+      fields: '*',
+    });
+    (result.data.changes ?? []).forEach((change) => {
+      console.log('change found for file: ', change.fileId);
+    });
+    pageToken = result.data.newStartPageToken;
+  } while (pageToken);
 }
 // [END drive_fetch_changes]
 
diff --git a/drive/snippets/drive_v3/change_snippets/fetch_start_page_token.js b/drive/snippets/drive_v3/change_snippets/fetch_start_page_token.js
index 6e4603d2..fc8f6240 100644
--- a/drive/snippets/drive_v3/change_snippets/fetch_start_page_token.js
+++ b/drive/snippets/drive_v3/change_snippets/fetch_start_page_token.js
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_fetch_start_page_token]
 
 /**
@@ -29,15 +30,10 @@ async function fetchStartPageToken() {
     scopes: 'https://www.googleapis.com/auth/drive.appdata',
   });
   const service = google.drive({version: 'v3', auth});
-  try {
-    const res = await service.changes.getStartPageToken({});
-    const token = res.data.startPageToken;
-    console.log('start token: ', token);
-    return token;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const res = await service.changes.getStartPageToken({});
+  const token = res.data.startPageToken;
+  console.log('start token: ', token);
+  return token;
 }
 // [END drive_fetch_start_page_token]
 
diff --git a/drive/snippets/drive_v3/change_snippets/package.json b/drive/snippets/drive_v3/change_snippets/package.json
index 37338fe6..da290121 100644
--- a/drive/snippets/drive_v3/change_snippets/package.json
+++ b/drive/snippets/drive_v3/change_snippets/package.json
@@ -8,9 +8,13 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v3/change_snippets/tsconfig.json b/drive/snippets/drive_v3/change_snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v3/change_snippets/tsconfig.json
+++ b/drive/snippets/drive_v3/change_snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v3/drive_snippets/create_drive.js b/drive/snippets/drive_v3/drive_snippets/create_drive.js
index cc54f0ab..ce846e57 100644
--- a/drive/snippets/drive_v3/drive_snippets/create_drive.js
+++ b/drive/snippets/drive_v3/drive_snippets/create_drive.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_create_drive]
 
-/**
- * Create a drive.
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 import {v4 as uuid} from 'uuid';
 
+/**
+ * Create a drive.
+ */
 async function createDrive() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -35,18 +36,13 @@ async function createDrive() {
     name: 'Project resources',
   };
   const requestId = uuid();
-  try {
-    const Drive = await service.drives.create({
-      resource: driveMetadata,
-      requestId: requestId,
-      fields: 'id',
-    });
-    console.log('Drive Id:', Drive.data.id);
-    return Drive.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const Drive = await service.drives.create({
+    requestBody: driveMetadata,
+    requestId,
+    fields: 'id',
+  });
+  console.log('Drive Id:', Drive.data.id);
+  return Drive.data.id;
 }
 // [END drive_create_drive]
 
diff --git a/drive/snippets/drive_v3/drive_snippets/package.json b/drive/snippets/drive_v3/drive_snippets/package.json
index 9faba91d..2d1b69cd 100644
--- a/drive/snippets/drive_v3/drive_snippets/package.json
+++ b/drive/snippets/drive_v3/drive_snippets/package.json
@@ -8,9 +8,14 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "@types/uuid": "^10.0.0",
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v3/drive_snippets/recover_drives.js b/drive/snippets/drive_v3/drive_snippets/recover_drives.js
index 102d852f..0e622c78 100644
--- a/drive/snippets/drive_v3/drive_snippets/recover_drives.js
+++ b/drive/snippets/drive_v3/drive_snippets/recover_drives.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_recover_drives]
 
-/**
- * Find all shared drives without an organizer and add one.
- * @param{string} userEmail user ID to assign ownership to
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Find all shared drives without an organizer and add one.
+ * @param{string} userEmail user ID to assign ownership to
+ */
 async function recoverDrives(userEmail) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -30,42 +31,33 @@ async function recoverDrives(userEmail) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v3', auth});
-  const drives = [];
   const newOrganizerPermission = {
     type: 'user',
     role: 'organizer',
     emailAddress: userEmail, // Example: 'user@example.com'
   };
 
-  let pageToken = null;
-  try {
-    const res = await service.drives.list({
-      q: 'organizerCount = 0',
-      fields: 'nextPageToken, drives(id, name)',
+  const result = await service.drives.list({
+    q: 'organizerCount = 0',
+    fields: 'nextPageToken, drives(id, name)',
+    useDomainAdminAccess: true,
+  });
+
+  for (const drive of result.data.drives ?? []) {
+    if (!drive.id) {
+      continue;
+    }
+
+    console.log('Found shared drive without organizer:', drive.name, drive.id);
+    await service.permissions.create({
+      requestBody: newOrganizerPermission,
+      fileId: drive.id,
       useDomainAdminAccess: true,
-      pageToken: pageToken,
+      supportsAllDrives: true,
+      fields: 'id',
     });
-    Array.prototype.push.apply(drives, res.data.items);
-    for (const drive of res.data.drives) {
-      console.log(
-          'Found shared drive without organizer:',
-          drive.name,
-          drive.id,
-      );
-      await service.permissions.create({
-        resource: newOrganizerPermission,
-        fileId: drive.id,
-        useDomainAdminAccess: true,
-        supportsAllDrives: true,
-        fields: 'id',
-      });
-    }
-    pageToken = res.nextPageToken;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
   }
-  return drives;
+  return result.data.drives;
 }
 // [END drive_recover_drives]
 
diff --git a/drive/snippets/drive_v3/drive_snippets/tsconfig.json b/drive/snippets/drive_v3/drive_snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v3/drive_snippets/tsconfig.json
+++ b/drive/snippets/drive_v3/drive_snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v3/file_snippets/create_folder.js b/drive/snippets/drive_v3/file_snippets/create_folder.js
index 99c76e2b..6864d640 100644
--- a/drive/snippets/drive_v3/file_snippets/create_folder.js
+++ b/drive/snippets/drive_v3/file_snippets/create_folder.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_create_folder]
 
-/**
- * Create a folder and prints the folder ID
- * @return{obj} folder Id
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Create a folder and prints the folder ID
+ * @return{Promise<string|null|undefined>} folder Id
+ */
 async function createFolder() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -34,17 +35,12 @@ async function createFolder() {
     name: 'Invoices',
     mimeType: 'application/vnd.google-apps.folder',
   };
-  try {
-    const file = await service.files.create({
-      requestBody: fileMetadata,
-      fields: 'id',
-    });
-    console.log('Folder Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.create({
+    requestBody: fileMetadata,
+    fields: 'id',
+  });
+  console.log('Folder Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_create_folder]
 
diff --git a/drive/snippets/drive_v3/file_snippets/create_shortcut.js b/drive/snippets/drive_v3/file_snippets/create_shortcut.js
index b4619a77..340ff631 100644
--- a/drive/snippets/drive_v3/file_snippets/create_shortcut.js
+++ b/drive/snippets/drive_v3/file_snippets/create_shortcut.js
@@ -13,15 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_create_shortcut]
 
-/**
- * Create a third party shortcut
- * @return{obj} shortcut Id
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Create a third party shortcut
+ * @return{Promise<string|null|undefined>} shortcut Id
+ */
 async function createShortcut() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -34,18 +35,12 @@ async function createShortcut() {
     name: 'Project plan',
     mimeType: 'application/vnd.google-apps.drive-sdk',
   };
-
-  try {
-    const file = await service.files.create({
-      requestBody: fileMetadata,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.create({
+    requestBody: fileMetadata,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_create_shortcut]
 
diff --git a/drive/snippets/drive_v3/file_snippets/download_file.js b/drive/snippets/drive_v3/file_snippets/download_file.js
index ee676858..a81c58ab 100644
--- a/drive/snippets/drive_v3/file_snippets/download_file.js
+++ b/drive/snippets/drive_v3/file_snippets/download_file.js
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_download_file]
 
-/**
- * Downloads a file
- * @param{string} realFileId file ID
- * @return{obj} file status
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Downloads a file
+ * @param{string} realFileId file ID
+ * @return{Promise<number>} file status
+ */
 async function downloadFile(realFileId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -32,18 +33,13 @@ async function downloadFile(realFileId) {
   });
   const service = google.drive({version: 'v3', auth});
 
-  fileId = realFileId;
-  try {
-    const file = await service.files.get({
-      fileId: fileId,
-      alt: 'media',
-    });
-    console.log(file.status);
-    return file.status;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const fileId = realFileId;
+  const file = await service.files.get({
+    fileId,
+    alt: 'media',
+  });
+  console.log(file.status);
+  return file.status;
 }
 // [END drive_download_file]
 
diff --git a/drive/snippets/drive_v3/file_snippets/export_pdf.js b/drive/snippets/drive_v3/file_snippets/export_pdf.js
index f1941bb4..89939e1b 100644
--- a/drive/snippets/drive_v3/file_snippets/export_pdf.js
+++ b/drive/snippets/drive_v3/file_snippets/export_pdf.js
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_export_pdf]
 
-/**
- * Download a Document file in PDF format
- * @param{string} fileId file ID
- * @return{obj} file status
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Download a Document file in PDF format
+ * @param{string} fileId file ID
+ * @return{Promise<number>} file status
+ */
 async function exportPdf(fileId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -30,18 +31,12 @@ async function exportPdf(fileId) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v3', auth});
-
-  try {
-    const result = await service.files.export({
-      fileId: fileId,
-      mimeType: 'application/pdf',
-    });
-    console.log(result.status);
-    return result;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const result = await service.files.export({
+    fileId,
+    mimeType: 'application/pdf',
+  });
+  console.log(result.status);
+  return result.status;
 }
 // [END drive_export_pdf]
 
diff --git a/drive/snippets/drive_v3/file_snippets/move_file_to_folder.js b/drive/snippets/drive_v3/file_snippets/move_file_to_folder.js
index 631020a9..41bed697 100644
--- a/drive/snippets/drive_v3/file_snippets/move_file_to_folder.js
+++ b/drive/snippets/drive_v3/file_snippets/move_file_to_folder.js
@@ -13,17 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_move_file_to_folder]
 
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Change the file's modification timestamp.
  * @param{string} fileId Id of the file to move
  * @param{string} folderId Id of the folder to move
- * @return{obj} file status
- * */
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
-
+ * @return{Promise<number>} result status
+ */
 async function moveFileToFolder(fileId, folderId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -31,29 +32,22 @@ async function moveFileToFolder(fileId, folderId) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v3', auth});
+  // Retrieve the existing parents to remove
+  const file = await service.files.get({
+    fileId,
+    fields: 'parents',
+  });
 
-  try {
-    // Retrieve the existing parents to remove
-    const file = await service.files.get({
-      fileId: fileId,
-      fields: 'parents',
-    });
-
-    // Move the file to the new folder
-    const previousParents = file.data.parents
-        .join(',');
-    const files = await service.files.update({
-      fileId: fileId,
-      addParents: folderId,
-      removeParents: previousParents,
-      fields: 'id, parents',
-    });
-    console.log(files.status);
-    return files.status;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  // Move the file to the new folder
+  const previousParents = (file.data.parents ?? []).join(',');
+  const result = await service.files.update({
+    fileId,
+    addParents: folderId,
+    removeParents: previousParents,
+    fields: 'id, parents',
+  });
+  console.log(result.status);
+  return result.status;
 }
 // [END drive_move_file_to_folder]
 
diff --git a/drive/snippets/drive_v3/file_snippets/package.json b/drive/snippets/drive_v3/file_snippets/package.json
index a0365f1c..e9dbdc30 100644
--- a/drive/snippets/drive_v3/file_snippets/package.json
+++ b/drive/snippets/drive_v3/file_snippets/package.json
@@ -8,9 +8,13 @@
     "check": "tsc --noEmit"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
     "node": ">=20"
+  },
+  "dependencies": {
+    "googleapis": "catalog:"
   }
-}
\ No newline at end of file
+}
diff --git a/drive/snippets/drive_v3/file_snippets/search_file.js b/drive/snippets/drive_v3/file_snippets/search_file.js
index 5a55d814..e7c8d6d7 100644
--- a/drive/snippets/drive_v3/file_snippets/search_file.js
+++ b/drive/snippets/drive_v3/file_snippets/search_file.js
@@ -13,15 +13,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_search_file]
 
-/**
- * Search file in drive location
- * @return{obj} data file
- * */
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Search file in drive location
+ */
 async function searchFile() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -29,22 +29,16 @@ async function searchFile() {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v3', auth});
-  const files = [];
-  try {
-    const res = await service.files.list({
-      q: 'mimeType=\'image/jpeg\'',
-      fields: 'nextPageToken, files(id, name)',
-      spaces: 'drive',
-    });
-    Array.prototype.push.apply(files, res.files);
-    res.data.files.forEach(function(file) {
-      console.log('Found file:', file.name, file.id);
-    });
-    return res.data.files;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+
+  const result = await service.files.list({
+    q: 'mimeType=\'image/jpeg\'',
+    fields: 'nextPageToken, files(id, name)',
+    spaces: 'drive',
+  });
+  (result.data.files ?? []).forEach((file) => {
+    console.log('Found file:', file.name, file.id);
+  });
+  return result.data.files;
 }
 // [END drive_search_file]
 
diff --git a/drive/snippets/drive_v3/file_snippets/share_file.js b/drive/snippets/drive_v3/file_snippets/share_file.js
index e088ee29..5216547e 100644
--- a/drive/snippets/drive_v3/file_snippets/share_file.js
+++ b/drive/snippets/drive_v3/file_snippets/share_file.js
@@ -13,18 +13,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_share_file]
 
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Batch permission modification
+ *
  * @param{string} fileId file ID
  * @param{string} targetUserEmail username
  * @param{string} targetDomainName domain
- * @return{list} permission id
- * */
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
-
+ * @return{Promise<Array<string>>} permission id
+ */
 async function shareFile(fileId, targetUserEmail, targetDomainName) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -32,6 +34,7 @@ async function shareFile(fileId, targetUserEmail, targetDomainName) {
     scopes: 'https://www.googleapis.com/auth/drive',
   });
   const service = google.drive({version: 'v3', auth});
+  /** @type {Array<string>} */
   const permissionIds = [];
 
   const permissions = [
@@ -46,23 +49,20 @@ async function shareFile(fileId, targetUserEmail, targetDomainName) {
       domain: targetDomainName, // 'example.com',
     },
   ];
-  // Note: Client library does not currently support HTTP batch
-  // requests. When possible, use batched requests when inserting
-  // multiple permissions on the same item. For this sample,
-  // permissions are inserted serially.
+
   for (const permission of permissions) {
-    try {
-      const result = await service.permissions.create({
-        resource: permission,
-        fileId: fileId,
-        fields: 'id',
-      });
-      permissionIds.push(result.data.id);
-      console.log(`Inserted permission id: ${result.data.id}`);
-    } catch (err) {
-      // TODO(developer): Handle failed permissions
-      console.error(err);
+    const result = await service.permissions.create({
+      requestBody: permission,
+      fileId,
+      fields: 'id',
+    });
+
+    if (!result.data.id) {
+      throw new Error('Failed to create permission');
     }
+
+    permissionIds.push(result.data.id);
+    console.log(`Inserted permission id: ${result.data.id}`);
   }
   return permissionIds;
 }
diff --git a/drive/snippets/drive_v3/file_snippets/touch_file.js b/drive/snippets/drive_v3/file_snippets/touch_file.js
index e13ab3d3..0567bc81 100644
--- a/drive/snippets/drive_v3/file_snippets/touch_file.js
+++ b/drive/snippets/drive_v3/file_snippets/touch_file.js
@@ -13,17 +13,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_touch_file]
 
+import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
+
 /**
  * Change the file's modification timestamp.
  * @param{string} fileId ID of the file to change modified time
  * @param{string} Timestamp Timestamp to override Modified date time of the file
- * @return{obj} modified Timestamp
+ * @return{Promise<string|null|undefined>} modified Timestamp
  **/
-import {GoogleAuth} from 'google-auth-library';
-import {google} from 'googleapis';
-
 async function touchFile(fileId, Timestamp) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -35,18 +36,13 @@ async function touchFile(fileId, Timestamp) {
     modifiedTime: new Date().toISOString(),
   };
   fileMetadata.modifiedTime = Timestamp;
-  try {
-    const file = await service.files.update({
-      fileId: fileId,
-      requestBody: fileMetadata,
-      fields: 'id, modifiedTime',
-    });
-    console.log('Modified time:', file.data.modifiedTime);
-    return file.data.modifiedTime;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.update({
+    fileId,
+    requestBody: fileMetadata,
+    fields: 'id, modifiedTime',
+  });
+  console.log('Modified time:', file.data.modifiedTime);
+  return file.data.modifiedTime;
 }
 // [END drive_touch_file]
 
diff --git a/drive/snippets/drive_v3/file_snippets/tsconfig.json b/drive/snippets/drive_v3/file_snippets/tsconfig.json
index e8c3a24a..37b1fdba 100644
--- a/drive/snippets/drive_v3/file_snippets/tsconfig.json
+++ b/drive/snippets/drive_v3/file_snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/drive/snippets/drive_v3/file_snippets/upload_basic.js b/drive/snippets/drive_v3/file_snippets/upload_basic.js
index f5da2526..03d11b84 100644
--- a/drive/snippets/drive_v3/file_snippets/upload_basic.js
+++ b/drive/snippets/drive_v3/file_snippets/upload_basic.js
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_basic]
 
-/**
- * Insert new file.
- * @return{obj} file Id
- * */
-import fs from 'fs';
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Insert new file.
+ * @return{Promise<string|null|undefined>} file Id
+ */
 async function uploadBasic() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -38,17 +39,12 @@ async function uploadBasic() {
     mimeType: 'image/jpeg',
     body: fs.createReadStream('files/photo.jpg'),
   };
-  try {
-    const file = await service.files.create({
-      requestBody,
-      media: media,
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.create({
+    requestBody,
+    media,
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_basic]
 
diff --git a/drive/snippets/drive_v3/file_snippets/upload_to_folder.js b/drive/snippets/drive_v3/file_snippets/upload_to_folder.js
index a87649a5..6009e2b1 100644
--- a/drive/snippets/drive_v3/file_snippets/upload_to_folder.js
+++ b/drive/snippets/drive_v3/file_snippets/upload_to_folder.js
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_to_folder]
 
-/**
- * Upload a file to the specified folder
- * @param{string} folderId folder ID
- * @return{obj} file Id
- * */
-import fs from 'fs';
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Upload a file to the specified folder
+ * @param{string} folderId folder ID
+ */
 async function uploadToFolder(folderId) {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -34,7 +34,7 @@ async function uploadToFolder(folderId) {
 
   // TODO(developer): set folder Id
   // folderId = '1lWo8HghUBd-3mN4s98ArNFMdqmhqCXH7';
-  const fileMetadata = {
+  const requestBody = {
     name: 'photo.jpg',
     parents: [folderId],
   };
@@ -43,18 +43,14 @@ async function uploadToFolder(folderId) {
     body: fs.createReadStream('files/photo.jpg'),
   };
 
-  try {
-    const file = await service.files.create({
-      requestBody: fileMetadata,
-      media: media,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.create({
+    requestBody,
+    media,
+    fields: 'id',
+  });
+
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_to_folder]
 
diff --git a/drive/snippets/drive_v3/file_snippets/upload_with_conversion.js b/drive/snippets/drive_v3/file_snippets/upload_with_conversion.js
index 38d3094e..46090ede 100644
--- a/drive/snippets/drive_v3/file_snippets/upload_with_conversion.js
+++ b/drive/snippets/drive_v3/file_snippets/upload_with_conversion.js
@@ -13,16 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 // [START drive_upload_with_conversion]
 
-/**
- * Upload file with conversion
- * @return{obj} file Id
- * */
-import fs from 'fs';
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
 
+/**
+ * Upload file with conversion
+ * @return{Promise<string|null|undefined>} file Id
+ */
 async function uploadWithConversion() {
   // Get credentials and build service
   // TODO (developer) - Use appropriate auth mechanism for your app
@@ -38,19 +39,13 @@ async function uploadWithConversion() {
     mimeType: 'text/csv',
     body: fs.createReadStream('files/report.csv'),
   };
-
-  try {
-    const file = await service.files.create({
-      requestBody: fileMetadata,
-      media: media,
-      fields: 'id',
-    });
-    console.log('File Id:', file.data.id);
-    return file.data.id;
-  } catch (err) {
-    // TODO(developer) - Handle error
-    throw err;
-  }
+  const file = await service.files.create({
+    requestBody: fileMetadata,
+    media,
+    fields: 'id',
+  });
+  console.log('File Id:', file.data.id);
+  return file.data.id;
 }
 // [END drive_upload_with_conversion]
 
diff --git a/drive/snippets/files/package.json b/drive/snippets/files/package.json
deleted file mode 100644
index 747fd64c..00000000
--- a/drive/snippets/files/package.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "name": "drive-snippets-files",
-  "version": "1.0.0",
-  "private": true,
-  "license": "Apache-2.0",
-  "type": "module",
-  "scripts": {
-    "check": "tsc --noEmit"
-  },
-  "devDependencies": {
-    "typescript": "catalog:"
-  },
-  "engines": {
-    "node": ">=20"
-  }
-}
\ No newline at end of file
diff --git a/drive/snippets/files/tsconfig.json b/drive/snippets/files/tsconfig.json
deleted file mode 100644
index c5b794f3..00000000
--- a/drive/snippets/files/tsconfig.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "extends": "../../../tsconfig.base.json"
-}
\ No newline at end of file
diff --git a/drive/snippets/test/helpers.js b/drive/snippets/test/helpers.js
index edbce0f1..22f0e428 100644
--- a/drive/snippets/test/helpers.js
+++ b/drive/snippets/test/helpers.js
@@ -13,9 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
+import fs from 'node:fs';
 import {GoogleAuth} from 'google-auth-library';
 import {google} from 'googleapis';
-import fs from 'fs';
 
 /**
  * Helper functions for Google Drive
@@ -65,7 +66,7 @@ class Helpers {
    */
   async createFile(fileMetadata, media) {
     const file = await this.service.files.create({
-      resource: fileMetadata,
+      requestBody: fileMetadata,
       media,
       fields: 'id',
     });
diff --git a/drive/snippets/test/test_drive_v2_create_drive.js b/drive/snippets/test/test_drive_v2_create_drive.js
index b6868855..3675965b 100644
--- a/drive/snippets/test/test_drive_v2_create_drive.js
+++ b/drive/snippets/test/test_drive_v2_create_drive.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createDrive} from '../drive_v2/drive_snippets/create_drive.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_create_folder.js b/drive/snippets/test/test_drive_v2_create_folder.js
index 3ce7f619..1249090a 100644
--- a/drive/snippets/test/test_drive_v2_create_folder.js
+++ b/drive/snippets/test/test_drive_v2_create_folder.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createFolder} from '../drive_v2/file snippets/create_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_create_shortcut.js b/drive/snippets/test/test_drive_v2_create_shortcut.js
index 46814fdf..09342718 100644
--- a/drive/snippets/test/test_drive_v2_create_shortcut.js
+++ b/drive/snippets/test/test_drive_v2_create_shortcut.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createShortcut} from '../drive_v2/file snippets/create_shortcut.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_download_file.js b/drive/snippets/test/test_drive_v2_download_file.js
index 9f1e2566..137c2399 100644
--- a/drive/snippets/test/test_drive_v2_download_file.js
+++ b/drive/snippets/test/test_drive_v2_download_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {downloadFile} from '../drive_v2/file snippets/download_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_export_pdf.js b/drive/snippets/test/test_drive_v2_export_pdf.js
index d2e24c44..325c29eb 100644
--- a/drive/snippets/test/test_drive_v2_export_pdf.js
+++ b/drive/snippets/test/test_drive_v2_export_pdf.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {exportPdf} from '../drive_v2/file snippets/export_pdf.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_fetch_appdata_folder.js b/drive/snippets/test/test_drive_v2_fetch_appdata_folder.js
index 7f647308..015220fa 100644
--- a/drive/snippets/test/test_drive_v2_fetch_appdata_folder.js
+++ b/drive/snippets/test/test_drive_v2_fetch_appdata_folder.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {fetchAppdataFolder} from '../drive_v2/appdata_snippets/fetch_appdata_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_fetch_changes.js b/drive/snippets/test/test_drive_v2_fetch_changes.js
index e90d9aeb..e72fa774 100644
--- a/drive/snippets/test/test_drive_v2_fetch_changes.js
+++ b/drive/snippets/test/test_drive_v2_fetch_changes.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {fetchChanges} from '../drive_v2/change_snippets/fetch_changes.js';
 import {fetchStartPageToken} from '../drive_v2/change_snippets/fetch_start_page_token.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_fetch_start_page_token.js b/drive/snippets/test/test_drive_v2_fetch_start_page_token.js
index 546e8f94..457ba514 100644
--- a/drive/snippets/test/test_drive_v2_fetch_start_page_token.js
+++ b/drive/snippets/test/test_drive_v2_fetch_start_page_token.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {fetchStartPageToken} from '../drive_v2/change_snippets/fetch_start_page_token.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_list_appdata.js b/drive/snippets/test/test_drive_v2_list_appdata.js
index 48594c10..ae741692 100644
--- a/drive/snippets/test/test_drive_v2_list_appdata.js
+++ b/drive/snippets/test/test_drive_v2_list_appdata.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
-import {uploadAppdata} from '../drive_v2/appdata_snippets/upload_appdata.js';
 import {listAppdata} from '../drive_v2/appdata_snippets/list_appdata.js';
+import {uploadAppdata} from '../drive_v2/appdata_snippets/upload_appdata.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_move_file_to_folder.js b/drive/snippets/test/test_drive_v2_move_file_to_folder.js
index 8810de29..8a346211 100644
--- a/drive/snippets/test/test_drive_v2_move_file_to_folder.js
+++ b/drive/snippets/test/test_drive_v2_move_file_to_folder.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createFolder} from '../drive_v2/file snippets/create_folder.js';
 import {moveFileToFolder} from '../drive_v2/file snippets/move_file_to_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_recover_drives.js b/drive/snippets/test/test_drive_v2_recover_drives.js
index 5e02cea7..f0f56b53 100644
--- a/drive/snippets/test/test_drive_v2_recover_drives.js
+++ b/drive/snippets/test/test_drive_v2_recover_drives.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
-import {recoverDrives} from '../drive_v2/drive_snippets/recover_drives.js';
 import {createDrive} from '../drive_v2/drive_snippets/create_drive.js';
+import {recoverDrives} from '../drive_v2/drive_snippets/recover_drives.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_search_file.js b/drive/snippets/test/test_drive_v2_search_file.js
index 797b6309..a4dbc631 100644
--- a/drive/snippets/test/test_drive_v2_search_file.js
+++ b/drive/snippets/test/test_drive_v2_search_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {searchFile} from '../drive_v2/file snippets/search_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_share_file.js b/drive/snippets/test/test_drive_v2_share_file.js
index 592c7c67..d89eb533 100644
--- a/drive/snippets/test/test_drive_v2_share_file.js
+++ b/drive/snippets/test/test_drive_v2_share_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {shareFile} from '../drive_v2/file snippets/share_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_touch_file.js b/drive/snippets/test/test_drive_v2_touch_file.js
index d4017470..17963757 100644
--- a/drive/snippets/test/test_drive_v2_touch_file.js
+++ b/drive/snippets/test/test_drive_v2_touch_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {touchFile} from '../drive_v2/file snippets/touch_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_upload_appdata.js b/drive/snippets/test/test_drive_v2_upload_appdata.js
index 26abfe61..2ac914af 100644
--- a/drive/snippets/test/test_drive_v2_upload_appdata.js
+++ b/drive/snippets/test/test_drive_v2_upload_appdata.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {uploadAppdata} from '../drive_v2/appdata_snippets/upload_appdata.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_upload_basic.js b/drive/snippets/test/test_drive_v2_upload_basic.js
index 81944e02..a6a83155 100644
--- a/drive/snippets/test/test_drive_v2_upload_basic.js
+++ b/drive/snippets/test/test_drive_v2_upload_basic.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {uploadBasic} from '../drive_v2/file snippets/upload_basic.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_upload_to_folder.js b/drive/snippets/test/test_drive_v2_upload_to_folder.js
index cf4a7afb..56b23b30 100644
--- a/drive/snippets/test/test_drive_v2_upload_to_folder.js
+++ b/drive/snippets/test/test_drive_v2_upload_to_folder.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
-import {uploadToFolder} from '../drive_v2/file snippets/upload_to_folder.js';
 import {createFolder} from '../drive_v2/file snippets/create_folder.js';
+import {uploadToFolder} from '../drive_v2/file snippets/upload_to_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v2_upload_with_conversion.js b/drive/snippets/test/test_drive_v2_upload_with_conversion.js
index 25b12add..4b9164cc 100644
--- a/drive/snippets/test/test_drive_v2_upload_with_conversion.js
+++ b/drive/snippets/test/test_drive_v2_upload_with_conversion.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {uploadWithConversion} from '../drive_v2/file snippets/upload_with_conversion.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_create_drive.js b/drive/snippets/test/test_drive_v3_create_drive.js
index cee27462..d2fcb184 100644
--- a/drive/snippets/test/test_drive_v3_create_drive.js
+++ b/drive/snippets/test/test_drive_v3_create_drive.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createDrive} from '../drive_v3/drive_snippets/create_drive.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_create_folder.js b/drive/snippets/test/test_drive_v3_create_folder.js
index e2a2c472..ae66d1af 100644
--- a/drive/snippets/test/test_drive_v3_create_folder.js
+++ b/drive/snippets/test/test_drive_v3_create_folder.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createFolder} from '../drive_v3/file_snippets/create_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_create_shortcut.js b/drive/snippets/test/test_drive_v3_create_shortcut.js
index 801c4070..d10717d8 100644
--- a/drive/snippets/test/test_drive_v3_create_shortcut.js
+++ b/drive/snippets/test/test_drive_v3_create_shortcut.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createShortcut} from '../drive_v3/file_snippets/create_shortcut.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_download_file.js b/drive/snippets/test/test_drive_v3_download_file.js
index c6a0ef30..3377df74 100644
--- a/drive/snippets/test/test_drive_v3_download_file.js
+++ b/drive/snippets/test/test_drive_v3_download_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {downloadFile} from '../drive_v3/file_snippets/download_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_export_pdf.js b/drive/snippets/test/test_drive_v3_export_pdf.js
index 0a0b209a..33c326c2 100644
--- a/drive/snippets/test/test_drive_v3_export_pdf.js
+++ b/drive/snippets/test/test_drive_v3_export_pdf.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {exportPdf} from '../drive_v3/file_snippets/export_pdf.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_fetch_appdata_folder.js b/drive/snippets/test/test_drive_v3_fetch_appdata_folder.js
index 9f6eb80d..e7fa0871 100644
--- a/drive/snippets/test/test_drive_v3_fetch_appdata_folder.js
+++ b/drive/snippets/test/test_drive_v3_fetch_appdata_folder.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {fetchAppdataFolder} from '../drive_v3/appdata_snippets/fetch_appdata_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_fetch_changes.js b/drive/snippets/test/test_drive_v3_fetch_changes.js
index 44428e98..27dd8f6e 100644
--- a/drive/snippets/test/test_drive_v3_fetch_changes.js
+++ b/drive/snippets/test/test_drive_v3_fetch_changes.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {fetchChanges} from '../drive_v3/change_snippets/fetch_changes.js';
 import {fetchStartPageToken} from '../drive_v3/change_snippets/fetch_start_page_token.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_fetch_start_page_token.js b/drive/snippets/test/test_drive_v3_fetch_start_page_token.js
index e7ed3347..9cc5786f 100644
--- a/drive/snippets/test/test_drive_v3_fetch_start_page_token.js
+++ b/drive/snippets/test/test_drive_v3_fetch_start_page_token.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {fetchStartPageToken} from '../drive_v3/change_snippets/fetch_start_page_token.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_list_appdata.js b/drive/snippets/test/test_drive_v3_list_appdata.js
index 5eaf5a7b..9af72d1a 100644
--- a/drive/snippets/test/test_drive_v3_list_appdata.js
+++ b/drive/snippets/test/test_drive_v3_list_appdata.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
-import {uploadAppdata} from '../drive_v3/appdata_snippets/upload_appdata.js';
 import {listAppdata} from '../drive_v3/appdata_snippets/list_appdata.js';
+import {uploadAppdata} from '../drive_v3/appdata_snippets/upload_appdata.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_move_file_to_folder.js b/drive/snippets/test/test_drive_v3_move_file_to_folder.js
index 7107f7cc..858be0b7 100644
--- a/drive/snippets/test/test_drive_v3_move_file_to_folder.js
+++ b/drive/snippets/test/test_drive_v3_move_file_to_folder.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createFolder} from '../drive_v3/file_snippets/create_folder.js';
 import {moveFileToFolder} from '../drive_v3/file_snippets/move_file_to_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_recover_drives.js b/drive/snippets/test/test_drive_v3_recover_drives.js
index 06a59779..32942c1d 100644
--- a/drive/snippets/test/test_drive_v3_recover_drives.js
+++ b/drive/snippets/test/test_drive_v3_recover_drives.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
-import {recoverDrives} from '../drive_v3/drive_snippets/recover_drives.js';
 import {createDrive} from '../drive_v3/drive_snippets/create_drive.js';
+import {recoverDrives} from '../drive_v3/drive_snippets/recover_drives.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
@@ -40,11 +40,11 @@ describe('Drive snippets', () => {
    */
   async function createOrphanedTeamDrive() {
     const fileId = await createDrive();
-    const res = await helpers.service.permissions.list({
+    const result = await helpers.service.permissions.list({
       fileId,
       supportsTeamDrives: true,
     });
-    res.data.permissions.forEach((permission) => {
+    result.data.permissions.forEach((permission) => {
       helpers.service.permissions.delete({
         fileId,
         permissionId: permission.id,
diff --git a/drive/snippets/test/test_drive_v3_search_file.js b/drive/snippets/test/test_drive_v3_search_file.js
index 66d964c4..3852de6a 100644
--- a/drive/snippets/test/test_drive_v3_search_file.js
+++ b/drive/snippets/test/test_drive_v3_search_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {searchFile} from '../drive_v3/file_snippets/search_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_share_file.js b/drive/snippets/test/test_drive_v3_share_file.js
index bfb24e35..8748ba35 100644
--- a/drive/snippets/test/test_drive_v3_share_file.js
+++ b/drive/snippets/test/test_drive_v3_share_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {shareFile} from '../drive_v3/file_snippets/share_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_touch_file.js b/drive/snippets/test/test_drive_v3_touch_file.js
index 5f512787..3ced518c 100644
--- a/drive/snippets/test/test_drive_v3_touch_file.js
+++ b/drive/snippets/test/test_drive_v3_touch_file.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {touchFile} from '../drive_v3/file_snippets/touch_file.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_upload_appdata.js b/drive/snippets/test/test_drive_v3_upload_appdata.js
index c5e03088..0ffd2a97 100644
--- a/drive/snippets/test/test_drive_v3_upload_appdata.js
+++ b/drive/snippets/test/test_drive_v3_upload_appdata.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {uploadAppdata} from '../drive_v3/appdata_snippets/upload_appdata.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_upload_basic.js b/drive/snippets/test/test_drive_v3_upload_basic.js
index d3fa483e..0039bc98 100644
--- a/drive/snippets/test/test_drive_v3_upload_basic.js
+++ b/drive/snippets/test/test_drive_v3_upload_basic.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {uploadBasic} from '../drive_v3/file_snippets/upload_basic.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_upload_to_folder.js b/drive/snippets/test/test_drive_v3_upload_to_folder.js
index dca2d464..bb624ff2 100644
--- a/drive/snippets/test/test_drive_v3_upload_to_folder.js
+++ b/drive/snippets/test/test_drive_v3_upload_to_folder.js
@@ -15,9 +15,9 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
-import {uploadToFolder} from '../drive_v3/file_snippets/upload_to_folder.js';
 import {createFolder} from '../drive_v3/file_snippets/create_folder.js';
+import {uploadToFolder} from '../drive_v3/file_snippets/upload_to_folder.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/drive/snippets/test/test_drive_v3_upload_with_conversion.js b/drive/snippets/test/test_drive_v3_upload_with_conversion.js
index 01ede9de..63880d16 100644
--- a/drive/snippets/test/test_drive_v3_upload_with_conversion.js
+++ b/drive/snippets/test/test_drive_v3_upload_with_conversion.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {uploadWithConversion} from '../drive_v3/file_snippets/upload_with_conversion.js';
+import {Helpers} from './helpers.js';
 
 describe('Drive snippets', () => {
   const helpers = new Helpers();
diff --git a/eslint.config.js b/eslint.config.js
index ec99a63f..b595a021 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -19,6 +19,7 @@ export default {
   rules: {
     ...google.rules,
     'require-jsdoc': 'off',
+    'valid-jsdoc': 'off',
     'max-len': ['warn', {code: 100}],
     'camelcase': [
       'warn',
diff --git a/forms/snippets/add_item.js b/forms/snippets/add_item.js
index 600cd68c..ba51e065 100644
--- a/forms/snippets/add_item.js
+++ b/forms/snippets/add_item.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_add_item]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 async function addItem() {
   const authClient = await authenticate({
@@ -33,7 +34,12 @@ async function addItem() {
   const createResponse = await formsClient.forms.create({
     requestBody: newForm,
   });
-  console.log('New formId was: ' + createResponse.data.formId);
+
+  if (!createResponse.data.formId) {
+    throw new Error('Form ID not returned.');
+  }
+
+  console.log(`New formId was: ${createResponse.data.formId}`);
 
   // Request body to add video item to a Form
   const update = {
diff --git a/forms/snippets/add_responder.js b/forms/snippets/add_responder.js
index a1dcc6db..df3387bc 100644
--- a/forms/snippets/add_responder.js
+++ b/forms/snippets/add_responder.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_add_responder]
-import path from 'path';
-import {drive} from '@googleapis/drive';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {drive} from '@googleapis/drive';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = ['https://www.googleapis.com/auth/drive.file'];
@@ -41,13 +42,13 @@ async function addResponder(formId, email) {
   };
 
   try {
-    const res = await driveService.permissions.create({
+    const result = await driveService.permissions.create({
       fileId: formId,
       requestBody: permissionBody,
       fields: 'id,emailAddress,role,type,view',
       sendNotificationEmail: false, // Optional
     });
-    console.log('Responder added:', res.data);
+    console.log('Responder added:', result.data);
   } catch (err) {
     console.error('Error adding responder:', err);
   }
diff --git a/forms/snippets/anyone_with_link_responder.js b/forms/snippets/anyone_with_link_responder.js
index 588d3e40..d69cc3b8 100644
--- a/forms/snippets/anyone_with_link_responder.js
+++ b/forms/snippets/anyone_with_link_responder.js
@@ -10,14 +10,16 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-import path from 'path';
-import {drive} from '@googleapis/drive';
+
+// [START forms_is_anyone_with_link_responder_js]
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {drive} from '@googleapis/drive';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = ['https://www.googleapis.com/auth/drive.file'];
 
-// [START forms_is_anyone_with_link_responder_js]
 /**
  * Checks if anyone with the link is a responder for the form.
  *
@@ -33,13 +35,13 @@ async function isAnyoneWithLinkResponder(formId) {
   let anyoneWithLinkResponder = false;
 
   try {
-    const res = await driveService.permissions.list({
+    const result = await driveService.permissions.list({
       fileId: formId,
       fields: 'permissions(id,type,role,view)',
       includePermissionsForView: 'published',
     });
 
-    const permissions = res.data.permissions || [];
+    const permissions = result.data.permissions || [];
     if (permissions.length === 0) {
       console.log(`No permissions found for form ID: ${formId}`);
     } else {
@@ -64,11 +66,8 @@ async function isAnyoneWithLinkResponder(formId) {
           `Form '${formId}' is NOT configured for 'Anyone with the link' to respond.`,
       );
     }
-  } catch (err) {
-    console.error(
-        'Error checking "anyone with link" permission:',
-        err.message || err,
-    );
+  } catch (e) {
+    console.error(`Error checking "anyone with link" permission: ${e}`);
   }
 }
 // [END forms_is_anyone_with_link_responder_js]
@@ -94,19 +93,16 @@ async function setAnyoneWithLinkResponder(formId) {
   };
 
   try {
-    const res = await driveService.permissions.create({
+    const result = await driveService.permissions.create({
       fileId: formId,
       requestBody: permissionBody,
       fields: 'id', // Request only needed fields
     });
     console.log(
-        `'Anyone with the link can respond' permission set for form '${formId}'. Permission ID: ${res.data.id}`,
-    );
-  } catch (err) {
-    console.error(
-        'Error setting "anyone with link" permission:',
-        err.message || err,
+        `'Anyone with the link can respond' permission set for form '${formId}'. Permission ID: ${result.data.id}`,
     );
+  } catch (e) {
+    console.error(`Error setting "anyone with link" permission: ${e}`);
   }
 }
 // [END forms_set_anyone_with_link_responder_js]
@@ -127,13 +123,13 @@ async function removeAnyoneWithLinkResponder(formId) {
   let permissionIdToDelete = null;
 
   try {
-    const res = await driveService.permissions.list({
+    const result = await driveService.permissions.list({
       fileId: formId,
       fields: 'permissions(id,type,role,view)',
       includePermissionsForView: 'published',
     });
 
-    const permissions = res.data.permissions || [];
+    const permissions = result.data.permissions || [];
     for (const permission of permissions) {
       if (
         permission.type === 'anyone' &&
@@ -158,11 +154,8 @@ async function removeAnyoneWithLinkResponder(formId) {
           `'Anyone with the link can respond' permission not found for form '${formId}'. Nothing to remove.`,
       );
     }
-  } catch (err) {
-    console.error(
-        'Error removing "anyone with link" permission:',
-        err.message || err,
-    );
+  } catch (e) {
+    console.error(`Error removing "anyone with link" permission: ${e}`);
   }
 }
 // [END forms_remove_anyone_with_link_responder_js]
diff --git a/forms/snippets/convert_form.js b/forms/snippets/convert_form.js
index 3c0e5288..bff3cd7c 100644
--- a/forms/snippets/convert_form.js
+++ b/forms/snippets/convert_form.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_convert_form]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 async function convertForm() {
   const authClient = await authenticate({
@@ -33,7 +34,12 @@ async function convertForm() {
   const createResponse = await formsClient.forms.create({
     requestBody: newForm,
   });
-  console.log('New formId was: ' + createResponse.data.formId);
+
+  if (!createResponse.data.formId) {
+    throw new Error('Failed to create form.');
+  }
+
+  console.log(`New formId was: ${createResponse.data.formId}`);
 
   // Request body to convert form to a quiz
   const updateRequest = {
@@ -50,12 +56,13 @@ async function convertForm() {
       },
     ],
   };
-  const res = await formsClient.forms.batchUpdate({
+
+  const result = await formsClient.forms.batchUpdate({
     formId: createResponse.data.formId,
     requestBody: updateRequest,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_convert_form]
diff --git a/forms/snippets/create_form.js b/forms/snippets/create_form.js
index 21dd1967..e3cfa600 100644
--- a/forms/snippets/create_form.js
+++ b/forms/snippets/create_form.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_create_form]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 async function createForm() {
   const authClient = await authenticate({
@@ -30,11 +31,11 @@ async function createForm() {
       title: 'Creating a new form in Node',
     },
   };
-  const res = await formsClient.forms.create({
+  const result = await formsClient.forms.create({
     requestBody: newForm,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_create_form]
diff --git a/forms/snippets/create_watch.js b/forms/snippets/create_watch.js
index 0b162f20..d7b8babb 100644
--- a/forms/snippets/create_watch.js
+++ b/forms/snippets/create_watch.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_create_watch]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const formID = '<YOUR_FORM_ID>';
 
@@ -37,12 +38,12 @@ async function createWatch() {
       eventType: 'RESPONSES',
     },
   };
-  const res = await formsClient.forms.watches.create({
+  const result = await formsClient.forms.watches.create({
     formId: formID,
     requestBody: watchRequest,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_create_watch]
diff --git a/forms/snippets/delete_watch.js b/forms/snippets/delete_watch.js
index f0d28718..0dc7a5b3 100644
--- a/forms/snippets/delete_watch.js
+++ b/forms/snippets/delete_watch.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_delete_watch]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const formID = '<YOUR_FORM_ID>';
 const watchID = '<YOUR_FORMS_WATCH_ID>';
@@ -28,12 +29,12 @@ async function deleteWatch() {
     version: 'v1',
     auth: authClient,
   });
-  const res = await formsClient.forms.watches.delete({
+  const result = await formsClient.forms.watches.delete({
     formId: formID,
     watchId: watchID,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_delete_watch]
diff --git a/forms/snippets/get_all_responses.js b/forms/snippets/get_all_responses.js
index 4555e0d2..5f535891 100644
--- a/forms/snippets/get_all_responses.js
+++ b/forms/snippets/get_all_responses.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_retrieve_all_responses]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const formID = '<YOUR_FORM_ID>';
 
@@ -25,13 +26,13 @@ async function getAllResponses() {
   });
   const formsClient = forms({
     version: 'v1',
-    auth: auth,
+    auth,
   });
-  const res = await formsClient.forms.responses.list({
+  const result = await formsClient.forms.responses.list({
     formId: formID,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_retrieve_all_responses]
diff --git a/forms/snippets/get_form.js b/forms/snippets/get_form.js
index fcea8c27..e1c7f4ee 100644
--- a/forms/snippets/get_form.js
+++ b/forms/snippets/get_form.js
@@ -12,24 +12,25 @@
 // limitations under the License.
 
 // [START forms_retrieve_contents]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const formID = '<YOUR_FORM_ID>';
 
-async function getForm(query) {
+async function getForm() {
   const auth = await authenticate({
     keyfilePath: path.join(__dirname, 'credentials.json'),
     scopes: 'https://www.googleapis.com/auth/forms.body.readonly',
   });
   const formsClient = forms({
     version: 'v1',
-    auth: auth,
+    auth,
   });
-  const res = await formsClient.forms.get({formId: formID});
-  console.log(res.data);
-  return res.data;
+  const result = await formsClient.forms.get({formId: formID});
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_retrieve_contents]
diff --git a/forms/snippets/get_responders.js b/forms/snippets/get_responders.js
index 453dc270..a1268428 100644
--- a/forms/snippets/get_responders.js
+++ b/forms/snippets/get_responders.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_get_responders]
-import path from 'path';
-import {drive} from '@googleapis/drive';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {drive} from '@googleapis/drive';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = ['https://www.googleapis.com/auth/drive.metadata.readonly'];
@@ -33,12 +34,12 @@ async function getResponders(formId) {
   const driveService = drive({version: 'v3', auth: authClient});
 
   try {
-    const res = await driveService.permissions.list({
+    const result = await driveService.permissions.list({
       fileId: formId,
       includePermissionsForView: 'published',
       fields: 'permissions(id,emailAddress,type,role,view)',
     });
-    const permissions = res.data.permissions || [];
+    const permissions = result.data.permissions || [];
     if (permissions.length === 0) {
       console.log(`No permissions found for form ID: ${formId}`);
     } else {
diff --git a/forms/snippets/get_single_response.js b/forms/snippets/get_single_response.js
index 180930ab..451b7199 100644
--- a/forms/snippets/get_single_response.js
+++ b/forms/snippets/get_single_response.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_retrieve_single_response]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const formID = '<YOUR_FORM_ID>';
 const responseID = '<YOUR_RESPONSE_ID>';
@@ -26,14 +27,14 @@ async function getSingleResponse() {
   });
   const formsClient = forms({
     version: 'v1',
-    auth: auth,
+    auth,
   });
-  const res = await formsClient.forms.responses.get({
+  const result = await formsClient.forms.responses.get({
     formId: formID,
     responseId: responseID,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_retrieve_single_response]
diff --git a/forms/snippets/list_watches.js b/forms/snippets/list_watches.js
index 5de5271f..431e7664 100644
--- a/forms/snippets/list_watches.js
+++ b/forms/snippets/list_watches.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_list_form_watches]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const formID = '<YOUR_FORM_ID>';
 
@@ -25,11 +26,11 @@ async function listWatches() {
   });
   const formsClient = forms({
     version: 'v1',
-    auth: auth,
+    auth,
   });
-  const res = await formsClient.forms.watches.list({formId: formID});
-  console.log(res.data);
-  return res.data;
+  const result = await formsClient.forms.watches.list({formId: formID});
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_list_form_watches]
diff --git a/forms/snippets/package.json b/forms/snippets/package.json
index 5a8b6d6f..47f22eb3 100644
--- a/forms/snippets/package.json
+++ b/forms/snippets/package.json
@@ -9,9 +9,13 @@
     "check": "tsc --noEmit"
   },
   "dependencies": {
+    "@google-cloud/local-auth": "catalog:",
+    "@googleapis/drive": "^15.0.0",
+    "@googleapis/forms": "^4.0.1",
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/forms/snippets/publish_form.js b/forms/snippets/publish_form.js
index 7c50ade6..475091c2 100644
--- a/forms/snippets/publish_form.js
+++ b/forms/snippets/publish_form.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_publish_form]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = 'https://www.googleapis.com/auth/forms.body';
@@ -45,11 +46,11 @@ async function publishForm(formIdToPublish) {
   };
 
   try {
-    const res = await formsClient.forms.setPublishSettings({
+    const result = await formsClient.forms.setPublishSettings({
       formId: formIdToPublish,
       requestBody: setPublishSettingsRequest,
     });
-    console.log('Form publish settings updated:', res.data);
+    console.log('Form publish settings updated:', result.data);
   } catch (err) {
     console.error('Error setting publish settings:', err);
   }
diff --git a/forms/snippets/remove_responders.js b/forms/snippets/remove_responders.js
index 9939affe..1ad8acb9 100644
--- a/forms/snippets/remove_responders.js
+++ b/forms/snippets/remove_responders.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_remove_responder]
-import path from 'path';
-import {drive} from '@googleapis/drive';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {drive} from '@googleapis/drive';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = ['https://www.googleapis.com/auth/drive.file'];
@@ -34,25 +35,29 @@ async function removeResponders(formId, email) {
   const driveService = drive({version: 'v3', auth: authClient});
 
   try {
-    const res = await driveService.permissions.list({
+    const result = await driveService.permissions.list({
       fileId: formId,
       includePermissionsForView: 'published',
       fields: 'permissions(id,emailAddress,type,role,view)',
     });
 
-    const permissions = res.data.permissions || [];
+    const permissions = result.data.permissions || [];
     const responderToRemove = permissions.find(
-        (permission) => permission.view === 'published' &&
-            permission.role === 'reader' && permission.emailAddress === email);
+        (permission) =>
+          permission.view === 'published' &&
+        permission.role === 'reader' &&
+        permission.emailAddress === email,
+    );
 
-    if (responderToRemove) {
+    if (responderToRemove?.id) {
       const permissionId = responderToRemove.id;
       await driveService.permissions.delete({
         fileId: formId,
-        permissionId: permissionId,
+        permissionId: responderToRemove.id,
       });
-      console.log(`Responder with permission ID '${
-        permissionId}' removed successfully.`);
+      console.log(
+          `Responder with permission ID '${permissionId}' removed successfully.`,
+      );
     } else {
       console.log('Responder not found for the specified form');
     }
diff --git a/forms/snippets/renew_watch.js b/forms/snippets/renew_watch.js
index 3b72c6d5..95f539d3 100644
--- a/forms/snippets/renew_watch.js
+++ b/forms/snippets/renew_watch.js
@@ -12,7 +12,8 @@
 // limitations under the License.
 
 // [START forms_renew_watch]
-import path from 'path';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
 import {forms} from '@googleapis/forms';
 
@@ -28,12 +29,12 @@ async function renewWatch() {
     version: 'v1',
     auth: authClient,
   });
-  const res = await formsClient.forms.watches.renew({
+  const result = await formsClient.forms.watches.renew({
     formId: formID,
     watchId: watchID,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_renew_watch]
diff --git a/forms/snippets/stop_accepting_responses.js b/forms/snippets/stop_accepting_responses.js
index 8f11ba7a..9643db65 100644
--- a/forms/snippets/stop_accepting_responses.js
+++ b/forms/snippets/stop_accepting_responses.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_stop_accepting_responses]
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
 import {forms} from '@googleapis/forms';
-import path from 'path';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = 'https://www.googleapis.com/auth/forms.body';
@@ -46,7 +47,7 @@ async function stopAcceptingResponses(formId) {
 
   try {
     const res = await formsClient.forms.setPublishSettings({
-      formId: formId,
+      formId,
       requestBody: setPublishSettingsRequest,
     });
     console.log('Form is no longer accepting responses.', res.data);
diff --git a/forms/snippets/supports_publishing.js b/forms/snippets/supports_publishing.js
index 8157b424..f2f19d89 100644
--- a/forms/snippets/supports_publishing.js
+++ b/forms/snippets/supports_publishing.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_supports_publishing]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = 'https://www.googleapis.com/auth/forms.body';
@@ -36,20 +37,26 @@ async function supportsPublishing(formIdToCheck) {
   });
 
   try {
-    const res = await formsClient.forms.get({
+    const result = await formsClient.forms.get({
       formId: formIdToCheck,
     });
 
-    const formTitle = res.data.info.title;
+    const formTitle = result.data.info?.title;
 
     // If 'publishSettings' field exists (even if empty), it supports the new
     // publishing model.
-    if (res.data && res.data.publishSettings !== undefined) {
-      console.log(`Form '${formIdToCheck}' (Title: ${
-        formTitle}) is NOT a legacy form (supports publishSettings).`);
+    if (result.data && result.data.publishSettings !== undefined) {
+      console.log(
+          `Form '${formIdToCheck}' (Title: ${
+            formTitle
+          }) is NOT a legacy form (supports publishSettings).`,
+      );
     } else {
-      console.log(`Form '${formIdToCheck}' (Title: ${
-        formTitle}) IS a legacy form (does not have publishSettings field).`);
+      console.log(
+          `Form '${formIdToCheck}' (Title: ${
+            formTitle
+          }) IS a legacy form (does not have publishSettings field).`,
+      );
     }
   } catch (err) {
     console.error(`Error getting form metadata for '${formIdToCheck}':`, err);
diff --git a/forms/snippets/tsconfig.json b/forms/snippets/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/forms/snippets/tsconfig.json
+++ b/forms/snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/forms/snippets/unpublish_form.js b/forms/snippets/unpublish_form.js
index fd5ef0e6..675ced9e 100644
--- a/forms/snippets/unpublish_form.js
+++ b/forms/snippets/unpublish_form.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_unpublish_form]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 const CREDENTIALS_PATH = path.join(__dirname, 'credentials.json');
 const SCOPES = 'https://www.googleapis.com/auth/forms.body';
diff --git a/forms/snippets/update_form.js b/forms/snippets/update_form.js
index 02a0c8a2..f2d24c3f 100644
--- a/forms/snippets/update_form.js
+++ b/forms/snippets/update_form.js
@@ -12,9 +12,10 @@
 // limitations under the License.
 
 // [START forms_update_form]
-import path from 'path';
-import {forms} from '@googleapis/forms';
+
+import path from 'node:path';
 import {authenticate} from '@google-cloud/local-auth';
+import {forms} from '@googleapis/forms';
 
 async function updateForm() {
   const authClient = await authenticate({
@@ -33,7 +34,10 @@ async function updateForm() {
   const createResponse = await formsClient.forms.create({
     requestBody: newForm,
   });
-  console.log('New formId was: ' + createResponse.data.formId);
+
+  if (!createResponse.data.formId) throw new Error('Form ID not returned.');
+
+  console.log(`New formId was: ${createResponse.data.formId}`);
 
   // Request body to add description to a Form
   const update = {
@@ -49,12 +53,12 @@ async function updateForm() {
       },
     ],
   };
-  const res = await formsClient.forms.batchUpdate({
+  const result = await formsClient.forms.batchUpdate({
     formId: createResponse.data.formId,
     requestBody: update,
   });
-  console.log(res.data);
-  return res.data;
+  console.log(result.data);
+  return result.data;
 }
 
 // [END forms_update_form]
diff --git a/gmail/quickstart/index.js b/gmail/quickstart/index.js
index ff49f3b3..a8acd54d 100644
--- a/gmail/quickstart/index.js
+++ b/gmail/quickstart/index.js
@@ -13,86 +13,31 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START gmail_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/gmail.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the labels in the user's account.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listLabels() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Lists the labels in the user's account.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listLabels(auth) {
   const gmail = google.gmail({version: 'v1', auth});
-  const res = await gmail.users.labels.list({
+  const result = await gmail.users.labels.list({
     userId: 'me',
   });
-  const labels = res.data.labels;
+  const labels = result.data.labels;
   if (!labels || labels.length === 0) {
     console.log('No labels found.');
     return;
@@ -103,6 +48,6 @@ async function listLabels(auth) {
   });
 }
 
-authorize().then(listLabels).catch(console.error);
+await listLabels();
 
 // [END gmail_quickstart]
diff --git a/gmail/quickstart/package.json b/gmail/quickstart/package.json
index 951a5980..12a3d26b 100644
--- a/gmail/quickstart/package.json
+++ b/gmail/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/gmail/quickstart/tsconfig.json b/gmail/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/gmail/quickstart/tsconfig.json
+++ b/gmail/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/meet/quickstart/index.js b/meet/quickstart/index.js
index 7a5cb695..50c57346 100644
--- a/meet/quickstart/index.js
+++ b/meet/quickstart/index.js
@@ -13,94 +13,36 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START meet_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
-import {authenticate} from '@google-cloud/local-auth';
+
+import path from 'node:path';
+import process from 'node:process';
 import {SpacesServiceClient} from '@google-apps/meet';
-import {auth} from 'google-auth-library';
+import {authenticate} from '@google-cloud/local-auth';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/meetings.space.created'];
-
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return auth.fromJSON(credentials);
-  } catch (err) {
-    console.log(err);
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Creates a new meeting space.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function createSpace() {
+  const authClient = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Creates a new meeting space.
- * @param {OAuth2Client} authClient An authorized OAuth2 client.
- */
-async function createSpace(authClient) {
   const meetClient = new SpacesServiceClient({
-    authClient: authClient,
+    authClient,
   });
   // Construct request
-  const request = {
-  };
+  const request = {};
 
   // Run request
   const response = await meetClient.createSpace(request);
   console.log(`Meet URL: ${response[0].meetingUri}`);
 }
 
-authorize().then(createSpace).catch(console.error);
+await createSpace();
 // [END meet_quickstart]
diff --git a/meet/quickstart/package.json b/meet/quickstart/package.json
index 04012a26..b0250060 100644
--- a/meet/quickstart/package.json
+++ b/meet/quickstart/package.json
@@ -13,6 +13,7 @@
     "@google-cloud/local-auth": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/meet/quickstart/tsconfig.json b/meet/quickstart/tsconfig.json
index 378b3b9c..9536a0f4 100644
--- a/meet/quickstart/tsconfig.json
+++ b/meet/quickstart/tsconfig.json
@@ -1,3 +1,3 @@
 {
-  "extends": "../../tsconfig.base.json",
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json"
+}
diff --git a/package.json b/package.json
index e93753ed..e95704fc 100644
--- a/package.json
+++ b/package.json
@@ -35,5 +35,11 @@
   "packageManager": "pnpm@10.15.1",
   "engines": {
     "node": ">=20"
+  },
+  "pnpm": {
+    "overrides": {
+      "googleapis-common": "catalog:",
+      "google-auth-library": "catalog:"
+    }
   }
 }
diff --git a/people/quickstart/index.js b/people/quickstart/index.js
index c96d4831..3b3f0b9d 100644
--- a/people/quickstart/index.js
+++ b/people/quickstart/index.js
@@ -13,88 +13,33 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START people_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/contacts.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Print the display name if available for 10 connections.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listConnectionNames() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Print the display name if available for 10 connections.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listConnectionNames(auth) {
   const service = google.people({version: 'v1', auth});
-  const res = await service.people.connections.list({
+  const result = await service.people.connections.list({
     resourceName: 'people/me',
     pageSize: 10,
     personFields: 'names,emailAddresses',
   });
-  const connections = res.data.connections;
+  const connections = result.data.connections;
   if (!connections || connections.length === 0) {
     console.log('No connections found.');
     return;
@@ -109,6 +54,5 @@ async function listConnectionNames(auth) {
   });
 }
 
-authorize().then(listConnectionNames).catch(console.error);
-
+await listConnectionNames();
 // [END people_quickstart]
diff --git a/people/quickstart/package.json b/people/quickstart/package.json
index c1569338..b6ee5d60 100644
--- a/people/quickstart/package.json
+++ b/people/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/people/quickstart/tsconfig.json b/people/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/people/quickstart/tsconfig.json
+++ b/people/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3c16d252..da9860e5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -13,7 +13,7 @@ catalogs:
       specifier: ^0.7.0
       version: 0.7.0
     '@google-cloud/local-auth':
-      specifier: ^3.0.1
+      specifier: 3.0.1
       version: 3.0.1
     '@grpc/grpc-js':
       specifier: ^1.13.4
@@ -36,11 +36,8 @@ catalogs:
     expect:
       specifier: ^29.2.1
       version: 29.7.0
-    google-auth-library:
-      specifier: ^10.3.0
-      version: 10.3.0
     googleapis:
-      specifier: ^159.0.0
+      specifier: 159.0.0
       version: 159.0.0
     mocha:
       specifier: ^10.0.0
@@ -58,6 +55,10 @@ catalogs:
       specifier: ^5.9.2
       version: 5.9.2
 
+overrides:
+  googleapis-common: 8.0.0
+  google-auth-library: 10.3.0
+
 importers:
 
   .:
@@ -90,6 +91,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -103,6 +107,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -116,12 +123,22 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   apps-script/execute:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -135,6 +152,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -148,6 +168,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -160,9 +183,6 @@ importers:
       '@grpc/grpc-js':
         specifier: 'catalog:'
         version: 1.13.4
-      google-auth-library:
-        specifier: 'catalog:'
-        version: 10.3.0
       open:
         specifier: 'catalog:'
         version: 10.2.0
@@ -170,6 +190,9 @@ importers:
         specifier: 'catalog:'
         version: 1.0.1
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -183,6 +206,9 @@ importers:
         specifier: 'catalog:'
         version: 3.0.1
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -196,16 +222,25 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   docs/quickstart:
     dependencies:
+      '@google-cloud/local-auth':
+        specifier: 'catalog:'
+        version: 3.0.1
       googleapis:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -219,6 +254,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -232,76 +270,141 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
-      typescript:
-        specifier: 'catalog:'
-        version: 5.9.2
-
-  drive/snippets/drive_v2:
-    devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v2/appdata_snippets:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v2/change_snippets:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v2/drive_snippets:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      '@types/uuid':
+        specifier: ^10.0.0
+        version: 10.0.0
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v2/file snippets:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v3/appdata_snippets:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v3/change_snippets:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v3/drive_snippets:
+    dependencies:
+      googleapis:
+        specifier: 'catalog:'
+        version: 159.0.0
     devDependencies:
+      '@types/uuid':
+        specifier: ^10.0.0
+        version: 10.0.0
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   drive/snippets/drive_v3/file_snippets:
-    devDependencies:
-      typescript:
+    dependencies:
+      googleapis:
         specifier: 'catalog:'
-        version: 5.9.2
-
-  drive/snippets/files:
+        version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   forms/snippets:
     dependencies:
+      '@google-cloud/local-auth':
+        specifier: 'catalog:'
+        version: 3.0.1
+      '@googleapis/drive':
+        specifier: ^15.0.0
+        version: 15.0.0
+      '@googleapis/forms':
+        specifier: ^4.0.1
+        version: 4.0.1
       googleapis:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -315,6 +418,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -328,6 +434,9 @@ importers:
         specifier: 'catalog:'
         version: 3.0.1
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -341,6 +450,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -354,15 +466,15 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   sheets/snippets:
     dependencies:
-      google-auth-library:
-        specifier: 'catalog:'
-        version: 10.3.0
       googleapis:
         specifier: 'catalog:'
         version: 159.0.0
@@ -370,6 +482,9 @@ importers:
       expect:
         specifier: 'catalog:'
         version: 29.7.0
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       mocha:
         specifier: 'catalog:'
         version: 10.8.2
@@ -386,15 +501,15 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
 
   slides/snippets:
     dependencies:
-      google-auth-library:
-        specifier: 'catalog:'
-        version: 10.3.0
       googleapis:
         specifier: 'catalog:'
         version: 159.0.0
@@ -402,6 +517,9 @@ importers:
       expect:
         specifier: 'catalog:'
         version: 29.7.0
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       mocha:
         specifier: 'catalog:'
         version: 10.8.2
@@ -418,6 +536,9 @@ importers:
         specifier: 'catalog:'
         version: 159.0.0
     devDependencies:
+      google-auth-library:
+        specifier: 10.3.0
+        version: 10.3.0
       typescript:
         specifier: 'catalog:'
         version: 5.9.2
@@ -462,6 +583,14 @@ packages:
     resolution: {integrity: sha512-YJ3GFbksfHyEarbVHPSCzhKpjbnlAhdzg2SEf79l6ODukrSM1qUOqfopY232Xkw26huKSndyzmJz+A6b2WYn7Q==}
     engines: {node: '>=14.0.0'}
 
+  '@googleapis/drive@15.0.0':
+    resolution: {integrity: sha512-PGuhTZMrS8HCJnFpYRhCU92GXgWEszku6XA517rYv1ohNB3nJFrVvjdMvzr/QOD4Q8R4Kg3fFLl6ULpKewLc0A==}
+    engines: {node: '>=12.0.0'}
+
+  '@googleapis/forms@4.0.1':
+    resolution: {integrity: sha512-SuBTmkdCv9gzbzGK71VP98o7I6ESeZRBdcJQT0r3sYFhAL2kZHXJj4Y2+KxZ4FoPVi4cVR/jpAInNof6xh7S1Q==}
+    engines: {node: '>=12.0.0'}
+
   '@grpc/grpc-js@1.13.4':
     resolution: {integrity: sha512-GsFaMXCkMqkKIvwCQjCrwH+GHbPKBjhwo/8ZuUkWHqbI73Kky9I+pQltrlT0+MWpedCoosda53lgjYfyEPgxBg==}
     engines: {node: '>=12.10.0'}
@@ -601,6 +730,9 @@ packages:
   '@types/stack-utils@2.0.3':
     resolution: {integrity: sha512-9aEbYZ3TbYMznPdcdr3SmIrLXwC/AKZXQeCf9Pgao5CKb8CyHuEX5jzWPTkvregvhRJHcpRO6BFoGW9ycaOkYw==}
 
+  '@types/uuid@10.0.0':
+    resolution: {integrity: sha512-7gqG38EyHgyP1S+7+xomFtL+ZNHcKv6DwNaCZmJmo1vgMugyF3TCnXVg4t1uk89mLNwnLtnY3TpOpCOyp1/xHQ==}
+
   '@types/yargs-parser@21.0.3':
     resolution: {integrity: sha512-I4q9QU9MQv4oEOz4tAHJtNz1cwuLxn2F3xcc2iV5WdqLPpUnj30aUuxt1mAxYTG+oe8CZMV/+6rU4S4gRDzqtQ==}
 
@@ -941,18 +1073,10 @@ packages:
   function-bind@1.1.2:
     resolution: {integrity: sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==}
 
-  gaxios@6.7.1:
-    resolution: {integrity: sha512-LDODD4TMYx7XXdpwxAVRAIAuB0bzv0s+ywFonY46k126qzQHT9ygyoa9tncmOiQmmDrik65UYsEkv3lbfqQ3yQ==}
-    engines: {node: '>=14'}
-
   gaxios@7.1.1:
     resolution: {integrity: sha512-Odju3uBUJyVCkW64nLD4wKLhbh93bh6vIg/ZIXkWiLPBrdgtc65+tls/qml+un3pr6JqYVFDZbbmLDQT68rTOQ==}
     engines: {node: '>=18'}
 
-  gcp-metadata@6.1.1:
-    resolution: {integrity: sha512-a4tiq7E0/5fTjxPAaH4jpjkSv/uCaU2p5KC6HVGrvl0cDjA8iBZv4vv1gyzlmK0ZUKqwpOyQMKzZQe3lTit77A==}
-    engines: {node: '>=14'}
-
   gcp-metadata@7.0.1:
     resolution: {integrity: sha512-UcO3kefx6dCcZkgcTGgVOTFb7b1LlQ02hY1omMjjrrBzkajRMCFgYOjs7J71WqnuG1k2b+9ppGL7FsOfhZMQKQ==}
     engines: {node: '>=18'}
@@ -994,18 +1118,10 @@ packages:
     resolution: {integrity: sha512-ylSE3RlCRZfZB56PFJSfUCuiuPq83Fx8hqu1KPWGK8FVdSaxlp/qkeMMX/DT/18xkwXIHvXEXkZsljRwfrdEfQ==}
     engines: {node: '>=18'}
 
-  google-auth-library@9.15.1:
-    resolution: {integrity: sha512-Jb6Z0+nvECVz+2lzSMt9u98UsoakXxA2HGHMCxh+so3n90XgYWkq5dur19JAJV7ONiJY22yBTyJB1TSkvPq9Ng==}
-    engines: {node: '>=14'}
-
   google-gax@5.0.3:
     resolution: {integrity: sha512-DkWybwgkV8HA9aIizNEHEUHd8ho1BzGGQ/YMGDsTt167dQ8pk/oMiwxpUFvh6Ta93m8ZN7KwdWmP3o46HWjV+A==}
     engines: {node: '>=18'}
 
-  google-logging-utils@0.0.2:
-    resolution: {integrity: sha512-NEgUnEcBiP5HrPzufUkBzJOD/Sxsco3rLNo1F1TNf7ieU8ryUzBhqba8r756CjLX7rn3fHl6iLEwPYuqpoKgQQ==}
-    engines: {node: '>=14'}
-
   google-logging-utils@1.1.1:
     resolution: {integrity: sha512-rcX58I7nqpu4mbKztFeOAObbomBbHU2oIb/d3tJfF3dizGSApqtSwYJigGCooHdnMyQBIw8BrWyK96w3YXgr6A==}
     engines: {node: '>=14'}
@@ -1028,10 +1144,6 @@ packages:
   graphemer@1.4.0:
     resolution: {integrity: sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==}
 
-  gtoken@7.1.0:
-    resolution: {integrity: sha512-pCcEwRi+TKpMlxAQObHDQ56KawURgyAf6jtIY046fJ5tIv3zDe/LEIubckAO8fj6JnAxLdmWkUfNyulQ2iKdEw==}
-    engines: {node: '>=14.0.0'}
-
   gtoken@8.0.0:
     resolution: {integrity: sha512-+CqsMbHPiSTdtSO14O51eMNlrp9N79gmeqmXeouJOhfucAedHw9noVe/n5uJk3tbKE6a+6ZCQg3RPhVhHByAIw==}
     engines: {node: '>=18'}
@@ -1126,10 +1238,6 @@ packages:
     resolution: {integrity: sha512-YWnfyRwxL/+SsrWYfOpUtz5b3YD+nyfkHvjbcanzk8zgyO4ASD67uVMRt8k5bM4lLMDnXfriRhOpemw+NfT1eA==}
     engines: {node: '>=8'}
 
-  is-stream@2.0.1:
-    resolution: {integrity: sha512-hFoiJiTl63nn+kstHGBtewWSKnQLpyb155KHheA1l39uvtO9nWIop1p3udqPcUd/xbF1VLMO4n7OI6p7RbngDg==}
-    engines: {node: '>=8'}
-
   is-unicode-supported@0.1.0:
     resolution: {integrity: sha512-knxG2q4UC3u8stRGyAVJCOdxFmv5DZiRcdlIaAQXAbSfJya+OhopNotLQrstBhququ4ZpuKbDc/8S6mgXgPFPw==}
     engines: {node: '>=10'}
@@ -1269,15 +1377,6 @@ packages:
     engines: {node: '>=10.5.0'}
     deprecated: Use your platform's native DOMException instead
 
-  node-fetch@2.7.0:
-    resolution: {integrity: sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==}
-    engines: {node: 4.x || >=6.0.0}
-    peerDependencies:
-      encoding: ^0.1.0
-    peerDependenciesMeta:
-      encoding:
-        optional: true
-
   node-fetch@3.3.2:
     resolution: {integrity: sha512-dRB78srN/l6gqWulah9SrxeYnxeddIG30+GOqK/9OlLVyLg3HPnr6SqOWTWOXKRwC2eGYCkZ59NNuSgvSrpgOA==}
     engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
@@ -1501,9 +1600,6 @@ packages:
     resolution: {integrity: sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==}
     engines: {node: '>=8.0'}
 
-  tr46@0.0.3:
-    resolution: {integrity: sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==}
-
   turbo-darwin-64@2.5.6:
     resolution: {integrity: sha512-3C1xEdo4aFwMJAPvtlPqz1Sw/+cddWIOmsalHFMrsqqydcptwBfu26WW2cDm3u93bUzMbBJ8k3zNKFqxJ9ei2A==}
     cpu: [x64]
@@ -1563,20 +1659,10 @@ packages:
   util-deprecate@1.0.2:
     resolution: {integrity: sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==}
 
-  uuid@9.0.1:
-    resolution: {integrity: sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==}
-    hasBin: true
-
   web-streams-polyfill@3.3.3:
     resolution: {integrity: sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw==}
     engines: {node: '>= 8'}
 
-  webidl-conversions@3.0.1:
-    resolution: {integrity: sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==}
-
-  whatwg-url@5.0.0:
-    resolution: {integrity: sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==}
-
   which@2.0.2:
     resolution: {integrity: sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==}
     engines: {node: '>= 8'}
@@ -1676,11 +1762,22 @@ snapshots:
   '@google-cloud/local-auth@3.0.1':
     dependencies:
       arrify: 2.0.1
-      google-auth-library: 9.15.1
+      google-auth-library: 10.3.0
       open: 7.4.2
       server-destroy: 1.0.1
     transitivePeerDependencies:
-      - encoding
+      - supports-color
+
+  '@googleapis/drive@15.0.0':
+    dependencies:
+      googleapis-common: 8.0.0
+    transitivePeerDependencies:
+      - supports-color
+
+  '@googleapis/forms@4.0.1':
+    dependencies:
+      googleapis-common: 8.0.0
+    transitivePeerDependencies:
       - supports-color
 
   '@grpc/grpc-js@1.13.4':
@@ -1824,6 +1921,8 @@ snapshots:
 
   '@types/stack-utils@2.0.3': {}
 
+  '@types/uuid@10.0.0': {}
+
   '@types/yargs-parser@21.0.3': {}
 
   '@types/yargs@17.0.33':
@@ -2174,17 +2273,6 @@ snapshots:
 
   function-bind@1.1.2: {}
 
-  gaxios@6.7.1:
-    dependencies:
-      extend: 3.0.2
-      https-proxy-agent: 7.0.6
-      is-stream: 2.0.1
-      node-fetch: 2.7.0
-      uuid: 9.0.1
-    transitivePeerDependencies:
-      - encoding
-      - supports-color
-
   gaxios@7.1.1:
     dependencies:
       extend: 3.0.2
@@ -2193,15 +2281,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  gcp-metadata@6.1.1:
-    dependencies:
-      gaxios: 6.7.1
-      google-logging-utils: 0.0.2
-      json-bigint: 1.0.0
-    transitivePeerDependencies:
-      - encoding
-      - supports-color
-
   gcp-metadata@7.0.1:
     dependencies:
       gaxios: 7.1.1
@@ -2271,18 +2350,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  google-auth-library@9.15.1:
-    dependencies:
-      base64-js: 1.5.1
-      ecdsa-sig-formatter: 1.0.11
-      gaxios: 6.7.1
-      gcp-metadata: 6.1.1
-      gtoken: 7.1.0
-      jws: 4.0.0
-    transitivePeerDependencies:
-      - encoding
-      - supports-color
-
   google-gax@5.0.3:
     dependencies:
       '@grpc/grpc-js': 1.13.4
@@ -2299,8 +2366,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  google-logging-utils@0.0.2: {}
-
   google-logging-utils@1.1.1: {}
 
   googleapis-common@8.0.0:
@@ -2326,14 +2391,6 @@ snapshots:
 
   graphemer@1.4.0: {}
 
-  gtoken@7.1.0:
-    dependencies:
-      gaxios: 6.7.1
-      jws: 4.0.0
-    transitivePeerDependencies:
-      - encoding
-      - supports-color
-
   gtoken@8.0.0:
     dependencies:
       gaxios: 7.1.1
@@ -2415,8 +2472,6 @@ snapshots:
 
   is-plain-obj@2.1.0: {}
 
-  is-stream@2.0.1: {}
-
   is-unicode-supported@0.1.0: {}
 
   is-wsl@2.2.0:
@@ -2604,10 +2659,6 @@ snapshots:
 
   node-domexception@1.0.0: {}
 
-  node-fetch@2.7.0:
-    dependencies:
-      whatwg-url: 5.0.0
-
   node-fetch@3.3.2:
     dependencies:
       data-uri-to-buffer: 4.0.1
@@ -2844,8 +2895,6 @@ snapshots:
     dependencies:
       is-number: 7.0.0
 
-  tr46@0.0.3: {}
-
   turbo-darwin-64@2.5.6:
     optional: true
 
@@ -2891,17 +2940,8 @@ snapshots:
 
   util-deprecate@1.0.2: {}
 
-  uuid@9.0.1: {}
-
   web-streams-polyfill@3.3.3: {}
 
-  webidl-conversions@3.0.1: {}
-
-  whatwg-url@5.0.0:
-    dependencies:
-      tr46: 0.0.3
-      webidl-conversions: 3.0.1
-
   which@2.0.2:
     dependencies:
       isexe: 2.0.0
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 5a8f9e6c..a11506a5 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -4,7 +4,7 @@ packages:
 catalog:
   '@google-apps/chat': ^0.19.0
   '@google-apps/meet': ^0.7.0
-  '@google-cloud/local-auth': ^3.0.1
+  '@google-cloud/local-auth': 3.0.1
   '@grpc/grpc-js': ^1.13.4
   '@types/jest': ^30.0.0
   '@types/mocha': ^10.0.10
@@ -12,8 +12,9 @@ catalog:
   eslint: ^8.57.1
   eslint-config-google: ^0.14.0
   expect: ^29.2.1
-  google-auth-library: ^10.3.0
-  googleapis: ^159.0.0
+  google-auth-library: 10.3.0
+  googleapis: 159.0.0
+  googleapis-common: 8.0.0
   mocha: ^10.0.0
   open: ^10.1.2
   server-destroy: ^1.0.1
diff --git a/sheets/quickstart/index.js b/sheets/quickstart/index.js
index aba64a93..302f2e20 100644
--- a/sheets/quickstart/index.js
+++ b/sheets/quickstart/index.js
@@ -13,87 +13,32 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START sheets_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/spreadsheets.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Prints the names and majors of students in a sample spreadsheet:
+ * @see https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listMajors() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
-
-/**
- * Prints the names and majors of students in a sample spreadsheet:
- * @see https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
- * @param {google.auth.OAuth2} auth The authenticated Google OAuth client.
- */
-async function listMajors(auth) {
   const sheets = google.sheets({version: 'v4', auth});
-  const res = await sheets.spreadsheets.values.get({
+  const result = await sheets.spreadsheets.values.get({
     spreadsheetId: '1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms',
     range: 'Class Data!A2:E',
   });
-  const rows = res.data.values;
+  const rows = result.data.values;
   if (!rows || rows.length === 0) {
     console.log('No data found.');
     return;
@@ -105,5 +50,5 @@ async function listMajors(auth) {
   });
 }
 
-authorize().then(listMajors).catch(console.error);
+await listMajors();
 // [END sheets_quickstart]
diff --git a/sheets/quickstart/package.json b/sheets/quickstart/package.json
index 4aa6eac7..6e69c65a 100644
--- a/sheets/quickstart/package.json
+++ b/sheets/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/sheets/quickstart/tsconfig.json b/sheets/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/sheets/quickstart/tsconfig.json
+++ b/sheets/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/sheets/snippets/package.json b/sheets/snippets/package.json
index 20dbeeb0..cbfe602a 100644
--- a/sheets/snippets/package.json
+++ b/sheets/snippets/package.json
@@ -9,11 +9,11 @@
     "test": "mocha --timeout 60000"
   },
   "dependencies": {
-    "google-auth-library": "catalog:",
     "googleapis": "catalog:"
   },
   "devDependencies": {
     "expect": "catalog:",
+    "google-auth-library": "catalog:",
     "mocha": "catalog:",
     "typescript": "catalog:"
   },
diff --git a/sheets/snippets/sheets_append_values.js b/sheets/snippets/sheets_append_values.js
index 755d646b..24143157 100644
--- a/sheets/snippets/sheets_append_values.js
+++ b/sheets/snippets/sheets_append_values.js
@@ -44,19 +44,14 @@ async function appendValues(spreadsheetId, range, valueInputOption, _values) {
   const resource = {
     values,
   };
-  try {
-    const result = await service.spreadsheets.values.append({
-      spreadsheetId,
-      range,
-      valueInputOption,
-      resource,
-    });
-    console.log(`${result.data.updates.updatedCells} cells appended.`);
-    return result;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const result = await service.spreadsheets.values.append({
+    spreadsheetId,
+    range,
+    valueInputOption,
+    resource,
+  });
+  console.log(`${result.data.updates.updatedCells} cells appended.`);
+  return result;
 }
 // [END sheets_append_values]
 
diff --git a/sheets/snippets/sheets_batch_get_values.js b/sheets/snippets/sheets_batch_get_values.js
index a7872f39..e1c585ed 100644
--- a/sheets/snippets/sheets_batch_get_values.js
+++ b/sheets/snippets/sheets_batch_get_values.js
@@ -35,18 +35,12 @@ async function batchGetValues(spreadsheetId, _ranges) {
   ];
   // [START_EXCLUDE silent]
   ranges = _ranges;
-  // [END_EXCLUDE]
-  try {
-    const result = await service.spreadsheets.values.batchGet({
-      spreadsheetId,
-      ranges,
-    });
-    console.log(`${result.data.valueRanges.length} ranges retrieved.`);
-    return result;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const result = await service.spreadsheets.values.batchGet({
+    spreadsheetId,
+    ranges,
+  });
+  console.log(`${result.data.valueRanges.length} ranges retrieved.`);
+  return result;
 }
 // [END sheets_batch_get_values]
 
diff --git a/sheets/snippets/sheets_batch_update.js b/sheets/snippets/sheets_batch_update.js
index 9383ad18..21a32588 100644
--- a/sheets/snippets/sheets_batch_update.js
+++ b/sheets/snippets/sheets_batch_update.js
@@ -52,18 +52,13 @@ async function batchUpdate(spreadsheetId, title, find, replacement) {
   });
   // Add additional requests (operations) ...
   const batchUpdateRequest = {requests};
-  try {
-    const response = await service.spreadsheets.batchUpdate({
-      spreadsheetId,
-      resource: batchUpdateRequest,
-    });
-    const findReplaceResponse = response.data.replies[1].findReplace;
-    console.log(`${findReplaceResponse.occurrencesChanged} replacements made.`);
-    return response;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const response = await service.spreadsheets.batchUpdate({
+    spreadsheetId,
+    requestBody: batchUpdateRequest,
+  });
+  const findReplaceResponse = response.data.replies[1].findReplace;
+  console.log(`${findReplaceResponse.occurrencesChanged} replacements made.`);
+  return response;
 }
 // [END sheets_batch_update]
 
diff --git a/sheets/snippets/sheets_batch_update_values.js b/sheets/snippets/sheets_batch_update_values.js
index f246f45d..50a70a0d 100644
--- a/sheets/snippets/sheets_batch_update_values.js
+++ b/sheets/snippets/sheets_batch_update_values.js
@@ -57,17 +57,12 @@ async function batchUpdateValues(
     data,
     valueInputOption,
   };
-  try {
-    const result = await service.spreadsheets.values.batchUpdate({
-      spreadsheetId,
-      resource,
-    });
-    console.log('%d cells updated.', result.data.totalUpdatedCells);
-    return result;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const result = await service.spreadsheets.values.batchUpdate({
+    spreadsheetId,
+    resource,
+  });
+  console.log('%d cells updated.', result.data.totalUpdatedCells);
+  return result;
 }
 // [END sheets_batch_update_values]
 
diff --git a/sheets/snippets/sheets_conditional_formatting.js b/sheets/snippets/sheets_conditional_formatting.js
index 285cfc49..ff21fc67 100644
--- a/sheets/snippets/sheets_conditional_formatting.js
+++ b/sheets/snippets/sheets_conditional_formatting.js
@@ -75,17 +75,12 @@ async function conditionalFormatting(spreadsheetId) {
   const resource = {
     requests,
   };
-  try {
-    const response = await service.spreadsheets.batchUpdate({
-      spreadsheetId,
-      resource,
-    });
-    console.log(`${response.data.replies.length} cells updated.`);
-    return response;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const response = await service.spreadsheets.batchUpdate({
+    spreadsheetId,
+    resource,
+  });
+  console.log(`${response.data.replies.length} cells updated.`);
+  return response;
 }
 // [END sheets_conditional_formatting]
 
diff --git a/sheets/snippets/sheets_create.js b/sheets/snippets/sheets_create.js
index fb11cf76..834a94bd 100644
--- a/sheets/snippets/sheets_create.js
+++ b/sheets/snippets/sheets_create.js
@@ -34,17 +34,12 @@ async function create(title) {
       title,
     },
   };
-  try {
-    const spreadsheet = await service.spreadsheets.create({
-      resource,
-      fields: 'spreadsheetId',
-    });
-    console.log(`Spreadsheet ID: ${spreadsheet.data.spreadsheetId}`);
-    return spreadsheet.data.spreadsheetId;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const spreadsheet = await service.spreadsheets.create({
+    resource,
+    fields: 'spreadsheetId',
+  });
+  console.log(`Spreadsheet ID: ${spreadsheet.data.spreadsheetId}`);
+  return spreadsheet.data.spreadsheetId;
 }
 // [END sheets_create]
 
diff --git a/sheets/snippets/sheets_get_values.js b/sheets/snippets/sheets_get_values.js
index c2c82b84..f1f08510 100644
--- a/sheets/snippets/sheets_get_values.js
+++ b/sheets/snippets/sheets_get_values.js
@@ -30,18 +30,13 @@ async function getValues(spreadsheetId, range) {
   });
 
   const service = google.sheets({version: 'v4', auth});
-  try {
-    const result = await service.spreadsheets.values.get({
-      spreadsheetId,
-      range,
-    });
-    const numRows = result.data.values ? result.data.values.length : 0;
-    console.log(`${numRows} rows retrieved.`);
-    return result;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const result = await service.spreadsheets.values.get({
+    spreadsheetId,
+    range,
+  });
+  const numRows = result.data.values ? result.data.values.length : 0;
+  console.log(`${numRows} rows retrieved.`);
+  return result;
 }
 // [END sheets_get_values]
 
diff --git a/sheets/snippets/sheets_pivot_table.js b/sheets/snippets/sheets_pivot_table.js
index dc25a7a9..b896f842 100644
--- a/sheets/snippets/sheets_pivot_table.js
+++ b/sheets/snippets/sheets_pivot_table.js
@@ -29,84 +29,79 @@ async function pivotTable(spreadsheetId) {
   });
 
   const service = google.sheets({version: 'v4', auth});
-  try {
-    // Create two sheets for our pivot table
-    let requests = [
-      {
-        addSheet: {},
-      },
-      {
-        addSheet: {},
-      },
-    ];
-    let resource = {requests};
-    let response = await service.spreadsheets.batchUpdate({
-      spreadsheetId,
-      resource,
-    });
-    const sourceSheetId = response.data.replies[0].addSheet.properties.sheetId;
-    const targetSheetId = response.data.replies[1].addSheet.properties.sheetId;
+  // Create two sheets for our pivot table
+  let requests = [
+    {
+      addSheet: {},
+    },
+    {
+      addSheet: {},
+    },
+  ];
+  let resource = {requests};
+  let response = await service.spreadsheets.batchUpdate({
+    spreadsheetId,
+    resource,
+  });
+  const sourceSheetId = response.data.replies[0].addSheet.properties.sheetId;
+  const targetSheetId = response.data.replies[1].addSheet.properties.sheetId;
 
-    requests = [
-      {
-        updateCells: {
-          rows: {
-            values: [
-              {
-                pivotTable: {
-                  source: {
-                    sheetId: sourceSheetId,
-                    startRowIndex: 0,
-                    startColumnIndex: 0,
-                    endRowIndex: 20,
-                    endColumnIndex: 7,
-                  },
-                  rows: [
-                    {
-                      sourceColumnOffset: 1,
-                      showTotals: true,
-                      sortOrder: 'ASCENDING',
-                    },
-                  ],
-                  columns: [
-                    {
-                      sourceColumnOffset: 4,
-                      sortOrder: 'ASCENDING',
-                      showTotals: true,
-                    },
-                  ],
-                  values: [
-                    {
-                      summarizeFunction: 'COUNTA',
-                      sourceColumnOffset: 4,
-                    },
-                  ],
-                  valueLayout: 'HORIZONTAL',
+  requests = [
+    {
+      updateCells: {
+        rows: {
+          values: [
+            {
+              pivotTable: {
+                source: {
+                  sheetId: sourceSheetId,
+                  startRowIndex: 0,
+                  startColumnIndex: 0,
+                  endRowIndex: 20,
+                  endColumnIndex: 7,
                 },
+                rows: [
+                  {
+                    sourceColumnOffset: 1,
+                    showTotals: true,
+                    sortOrder: 'ASCENDING',
+                  },
+                ],
+                columns: [
+                  {
+                    sourceColumnOffset: 4,
+                    sortOrder: 'ASCENDING',
+                    showTotals: true,
+                  },
+                ],
+                values: [
+                  {
+                    summarizeFunction: 'COUNTA',
+                    sourceColumnOffset: 4,
+                  },
+                ],
+                valueLayout: 'HORIZONTAL',
               },
-            ],
-          },
-          start: {
-            sheetId: targetSheetId,
-            rowIndex: 0,
-            columnIndex: 0,
-          },
-          fields: 'pivotTable',
+            },
+          ],
         },
+        start: {
+          sheetId: targetSheetId,
+          rowIndex: 0,
+          columnIndex: 0,
+        },
+        fields: 'pivotTable',
       },
-    ];
-    resource = {
-      requests,
-    };
-    response = service.spreadsheets.batchUpdate({
-      spreadsheetId,
-      resource,
-    });
-    return response;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+    },
+  ];
+  resource = {
+    requests,
+  };
+  response = service.spreadsheets.batchUpdate({
+    spreadsheetId,
+    resource,
+  });
+  return response;
 }
 // [END sheets_pivot_tables]
 
diff --git a/sheets/snippets/sheets_update_values.js b/sheets/snippets/sheets_update_values.js
index 92c4b0f9..62a79d7a 100644
--- a/sheets/snippets/sheets_update_values.js
+++ b/sheets/snippets/sheets_update_values.js
@@ -44,19 +44,14 @@ async function updateValues(spreadsheetId, range, valueInputOption, _values) {
   const resource = {
     values,
   };
-  try {
-    const result = await service.spreadsheets.values.update({
-      spreadsheetId,
-      range,
-      valueInputOption,
-      resource,
-    });
-    console.log('%d cells updated.', result.data.updatedCells);
-    return result;
-  } catch (err) {
-    // TODO (Developer) - Handle exception
-    throw err;
-  }
+  const result = await service.spreadsheets.values.update({
+    spreadsheetId,
+    range,
+    valueInputOption,
+    resource,
+  });
+  console.log('%d cells updated.', result.data.updatedCells);
+  return result;
 }
 // [END sheets_update_values]
 
diff --git a/sheets/snippets/test/helpers.js b/sheets/snippets/test/helpers.js
index 4b2afe07..85078188 100644
--- a/sheets/snippets/test/helpers.js
+++ b/sheets/snippets/test/helpers.js
@@ -68,16 +68,16 @@ class Helpers {
    * @return {Promise} A promise to return the Google API service.
    */
   async createTestSpreadsheet() {
-    const res = await this.sheetsService.spreadsheets.create({
-      resource: {
+    const result = await this.sheetsService.spreadsheets.create({
+      requestBody: {
         properties: {
           title: 'Test Spreadsheet',
         },
       },
       fields: 'spreadsheetId',
     });
-    this.deleteFileOnCleanup(res.data.spreadsheetId);
-    return res.data.spreadsheetId;
+    this.deleteFileOnCleanup(result.data.spreadsheetId);
+    return result.data.spreadsheetId;
   }
 
   /**
@@ -88,7 +88,7 @@ class Helpers {
   async populateValues(spreadsheetId) {
     await this.sheetsService.spreadsheets.batchUpdate({
       spreadsheetId,
-      resource: {
+      requestBody: {
         requests: [
           {
             repeatCell: {
diff --git a/sheets/snippets/test/test_sheets_append_values.js b/sheets/snippets/test/test_sheets_append_values.js
index 8d16d562..fb1ab80b 100644
--- a/sheets/snippets/test/test_sheets_append_values.js
+++ b/sheets/snippets/test/test_sheets_append_values.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {appendValues} from '../sheets_append_values.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet append values snippet', () => {
   const helpers = new Helpers();
@@ -28,15 +28,10 @@ describe('Spreadsheet append values snippet', () => {
   it('should append values to a spreadsheet', async () => {
     const spreadsheetId = await helpers.createTestSpreadsheet();
     await helpers.populateValues(spreadsheetId);
-    const result = await appendValues(
-        spreadsheetId,
-        'Sheet1',
-        'USER_ENTERED',
-        [
-          ['A', 'B'],
-          ['C', 'D'],
-        ],
-    );
+    const result = await appendValues(spreadsheetId, 'Sheet1', 'USER_ENTERED', [
+      ['A', 'B'],
+      ['C', 'D'],
+    ]);
     expect(result.data.tableRange).toBe('Sheet1!A1:J10');
     const updates = result.data.updates;
     expect(updates.updatedRows).toBe(2);
diff --git a/sheets/snippets/test/test_sheets_batch_get_values.js b/sheets/snippets/test/test_sheets_batch_get_values.js
index 96ab10a5..20af1b04 100644
--- a/sheets/snippets/test/test_sheets_batch_get_values.js
+++ b/sheets/snippets/test/test_sheets_batch_get_values.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {batchGetValues} from '../sheets_batch_get_values.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet batch get values snippet', () => {
   const helpers = new Helpers();
@@ -28,10 +28,7 @@ describe('Spreadsheet batch get values snippet', () => {
   it('should batch get spreadsheet values', async () => {
     const spreadsheetId = await helpers.createTestSpreadsheet();
     await helpers.populateValues(spreadsheetId);
-    const result = await batchGetValues(spreadsheetId, [
-      'A1:A3',
-      'B1:C1',
-    ]);
+    const result = await batchGetValues(spreadsheetId, ['A1:A3', 'B1:C1']);
     const valueRanges = result.data.valueRanges;
     expect(valueRanges.length).toBe(2);
     const values = valueRanges[0].values;
diff --git a/sheets/snippets/test/test_sheets_batch_update.js b/sheets/snippets/test/test_sheets_batch_update.js
index 4cf157de..5ffd2ca9 100644
--- a/sheets/snippets/test/test_sheets_batch_update.js
+++ b/sheets/snippets/test/test_sheets_batch_update.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {batchUpdate} from '../sheets_batch_update.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet batch update snippet', () => {
   const helpers = new Helpers();
diff --git a/sheets/snippets/test/test_sheets_batch_update_values.js b/sheets/snippets/test/test_sheets_batch_update_values.js
index f02579eb..812e0820 100644
--- a/sheets/snippets/test/test_sheets_batch_update_values.js
+++ b/sheets/snippets/test/test_sheets_batch_update_values.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {batchUpdateValues} from '../sheets_batch_update_values.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet batch update values snippet', () => {
   const helpers = new Helpers();
diff --git a/sheets/snippets/test/test_sheets_conditional_formatting.js b/sheets/snippets/test/test_sheets_conditional_formatting.js
index f7f4ec02..858faf49 100644
--- a/sheets/snippets/test/test_sheets_conditional_formatting.js
+++ b/sheets/snippets/test/test_sheets_conditional_formatting.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {conditionalFormatting} from '../sheets_conditional_formatting.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet conditional formatting snippet', () => {
   const helpers = new Helpers();
@@ -28,9 +28,7 @@ describe('Spreadsheet conditional formatting snippet', () => {
   it('should conditionally format', async () => {
     const spreadsheetId = await helpers.createTestSpreadsheet();
     await helpers.populateValues(spreadsheetId);
-    const result = await conditionalFormatting(
-        spreadsheetId,
-    );
+    const result = await conditionalFormatting(spreadsheetId);
     expect(result.data.replies.length).toBe(2);
   });
 });
diff --git a/sheets/snippets/test/test_sheets_create.js b/sheets/snippets/test/test_sheets_create.js
index ca278d1f..c54b707b 100644
--- a/sheets/snippets/test/test_sheets_create.js
+++ b/sheets/snippets/test/test_sheets_create.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {create} from '../sheets_create.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet create snippet', () => {
   const helpers = new Helpers();
diff --git a/sheets/snippets/test/test_sheets_get_values.js b/sheets/snippets/test/test_sheets_get_values.js
index c5d34597..703a248d 100644
--- a/sheets/snippets/test/test_sheets_get_values.js
+++ b/sheets/snippets/test/test_sheets_get_values.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {getValues} from '../sheets_get_values.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet get values snippet', () => {
   const helpers = new Helpers();
diff --git a/sheets/snippets/test/test_sheets_pivot_table.js b/sheets/snippets/test/test_sheets_pivot_table.js
index a4785915..8ea5381a 100644
--- a/sheets/snippets/test/test_sheets_pivot_table.js
+++ b/sheets/snippets/test/test_sheets_pivot_table.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {pivotTable} from '../sheets_pivot_table.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet pivot table snippet', () => {
   const helpers = new Helpers();
diff --git a/sheets/snippets/test/test_sheets_update_values.js b/sheets/snippets/test/test_sheets_update_values.js
index e9989e7b..4132a7e5 100644
--- a/sheets/snippets/test/test_sheets_update_values.js
+++ b/sheets/snippets/test/test_sheets_update_values.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {updateValues} from '../sheets_update_values.js';
+import {Helpers} from './helpers.js';
 
 describe('Spreadsheet update values snippet', () => {
   const helpers = new Helpers();
@@ -27,15 +27,10 @@ describe('Spreadsheet update values snippet', () => {
 
   it('should update spreadsheet values', async () => {
     const spreadsheetId = await helpers.createTestSpreadsheet();
-    const result = await updateValues(
-        spreadsheetId,
-        'A1:B2',
-        'USER_ENTERED',
-        [
-          ['A', 'B'],
-          ['C', 'D'],
-        ],
-    );
+    const result = await updateValues(spreadsheetId, 'A1:B2', 'USER_ENTERED', [
+      ['A', 'B'],
+      ['C', 'D'],
+    ]);
     expect(result.data.updatedRows).toBe(2);
     expect(result.data.updatedColumns).toBe(2);
     expect(result.data.updatedCells).toBe(4);
diff --git a/sheets/snippets/tsconfig.json b/sheets/snippets/tsconfig.json
index c5b794f3..2fb554f9 100644
--- a/sheets/snippets/tsconfig.json
+++ b/sheets/snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/slides/quickstart/index.js b/slides/quickstart/index.js
index 1791efa6..904db2ca 100644
--- a/slides/quickstart/index.js
+++ b/slides/quickstart/index.js
@@ -13,96 +13,44 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START slides_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/presentations.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Prints the number of slides and elements in a sample presentation:
+ * https://docs.google.com/presentation/d/1EAYk18WDjIG-zp_0vLm3CsfQh_i8eXc67Jo2O9C6Vuc/edit
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listSlides() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Prints the number of slides and elements in a sample presentation:
- * https://docs.google.com/presentation/d/1EAYk18WDjIG-zp_0vLm3CsfQh_i8eXc67Jo2O9C6Vuc/edit
- * @param {google.auth.OAuth2} auth The authenticated Google OAuth client.
- */
-async function listSlides(auth) {
   const slidesApi = google.slides({version: 'v1', auth});
-  const res = await slidesApi.presentations.get({
+  const result = await slidesApi.presentations.get({
     presentationId: '1EAYk18WDjIG-zp_0vLm3CsfQh_i8eXc67Jo2O9C6Vuc',
   });
-  const slides = res.data.slides;
+  const slides = result.data.slides;
   if (!slides || slides.length === 0) {
     console.log('No slides found.');
     return;
   }
   console.log('The presentation contains %s slides:', slides.length);
-  res.data.slides.forEach((slide, i) => {
+  (result.data.slides ?? []).forEach((slide, i) => {
     console.log(
-        `- Slide #${i + 1} contains ${slide.pageElements.length} elements.`,
+        `- Slide #${i + 1} contains ${
+          slide?.pageElements?.length ?? 0
+        }} elements.`,
     );
   });
 }
-authorize().then(listSlides).catch(console.error);
+await listSlides();
 // [END slides_quickstart]
diff --git a/slides/quickstart/package.json b/slides/quickstart/package.json
index 2aa25eeb..3e472735 100644
--- a/slides/quickstart/package.json
+++ b/slides/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/slides/quickstart/tsconfig.json b/slides/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/slides/quickstart/tsconfig.json
+++ b/slides/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/slides/snippets/package.json b/slides/snippets/package.json
index 5e1be535..3a744e9d 100644
--- a/slides/snippets/package.json
+++ b/slides/snippets/package.json
@@ -9,11 +9,11 @@
     "test": "mocha --timeout 60000"
   },
   "dependencies": {
-    "google-auth-library": "catalog:",
     "googleapis": "catalog:"
   },
   "devDependencies": {
     "expect": "catalog:",
+    "google-auth-library": "catalog:",
     "mocha": "catalog:",
     "typescript": "catalog:"
   },
diff --git a/slides/snippets/slides_copy_presentation.js b/slides/snippets/slides_copy_presentation.js
index a0cb243b..f5dcf1bd 100644
--- a/slides/snippets/slides_copy_presentation.js
+++ b/slides/snippets/slides_copy_presentation.js
@@ -32,19 +32,13 @@ async function copyPresentation(presentationId, copyTitle) {
   const request = {
     name: copyTitle,
   };
-
-  try {
-    const driveResponse = await service.files.copy({
-      fileId: presentationId,
-      resource: request,
-    });
-    const presentationCopyId = driveResponse.data.id;
-    console.log('Created copied presentation with ID: ' + presentationCopyId);
-    return driveResponse;
-  } catch (err) {
-    // TODO (developer) - handle exception
-    throw err;
-  }
+  const driveResponse = await service.files.copy({
+    fileId: presentationId,
+    requestBody: request,
+  });
+  const presentationCopyId = driveResponse.data.id;
+  console.log(`Created copied presentation with ID: ${presentationCopyId}`);
+  return driveResponse;
 }
 // [END slides_copy_presentation]
 
diff --git a/slides/snippets/slides_create_bulleted_text.js b/slides/snippets/slides_create_bulleted_text.js
index 3c2f7bb6..aa7e7abf 100644
--- a/slides/snippets/slides_create_bulleted_text.js
+++ b/slides/snippets/slides_create_bulleted_text.js
@@ -42,21 +42,14 @@ async function createBulletedText(presentationId, shapeId) {
       },
     },
   ];
-
-  // Execute the requests.
-  try {
-    const batchUpdateResponse = await service.presentations.batchUpdate({
-      presentationId,
-      resource: {
-        requests,
-      },
-    });
-    console.log(`Added bullets to text in shape with ID: ${shapeId}`);
-    return batchUpdateResponse.data;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const batchUpdateResponse = await service.presentations.batchUpdate({
+    presentationId,
+    requestBody: {
+      requests,
+    },
+  });
+  console.log(`Added bullets to text in shape with ID: ${shapeId}`);
+  return batchUpdateResponse.data;
 }
 // [END slides_create_bulleted_text]
 
diff --git a/slides/snippets/slides_create_image.js b/slides/snippets/slides_create_image.js
index 5d0961e9..2fcde756 100644
--- a/slides/snippets/slides_create_image.js
+++ b/slides/snippets/slides_create_image.js
@@ -60,22 +60,15 @@ async function createImage(presentationId, pageId) {
       },
     },
   ];
-
-  // Execute the request.
-  try {
-    const response = await service.presentations.batchUpdate({
-      presentationId,
-      resource: {requests},
-    });
-    const createImageResponse = response.data.replies;
-    console.log(
-        `Created image with ID: ${createImageResponse[0].createImage.objectId}`,
-    );
-    return createImageResponse;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const response = await service.presentations.batchUpdate({
+    presentationId,
+    requestBody: {requests},
+  });
+  const createImageResponse = response.data.replies;
+  console.log(
+      `Created image with ID: ${createImageResponse[0].createImage.objectId}`,
+  );
+  return createImageResponse;
 }
 // [END slides_create_image]
 
diff --git a/slides/snippets/slides_create_presentation.js b/slides/snippets/slides_create_presentation.js
index fedda7a4..dc96b5d7 100644
--- a/slides/snippets/slides_create_presentation.js
+++ b/slides/snippets/slides_create_presentation.js
@@ -28,18 +28,13 @@ async function createPresentation(title) {
   });
 
   const service = google.slides({version: 'v1', auth});
-  try {
-    const presentation = await service.presentations.create({
-      title,
-    });
-    console.log(
-        `Created presentation with ID: ${presentation.data.presentationId}`,
-    );
-    return presentation;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const presentation = await service.presentations.create({
+    title,
+  });
+  console.log(
+      `Created presentation with ID: ${presentation.data.presentationId}`,
+  );
+  return presentation;
 }
 // [END slides_create_presentation]
 
diff --git a/slides/snippets/slides_create_sheets_chart.js b/slides/snippets/slides_create_sheets_chart.js
index fc3a5ee5..2d4d2d2f 100644
--- a/slides/snippets/slides_create_sheets_chart.js
+++ b/slides/snippets/slides_create_sheets_chart.js
@@ -49,7 +49,7 @@ async function createSheetsChart(
     {
       createSheetsChart: {
         objectId: presentationChartId,
-        spreadsheetId: spreadsheetId,
+        spreadsheetId,
         chartId: sheetChartId,
         linkingMode: 'LINKED',
         elementProperties: {
@@ -69,21 +69,14 @@ async function createSheetsChart(
       },
     },
   ];
-
-  // Execute the request.
-  try {
-    const batchUpdateResponse = await service.presentations.batchUpdate({
-      presentationId,
-      resource: {
-        requests,
-      },
-    });
-    console.log(`Added a linked Sheets chart with ID: ${presentationChartId}`);
-    return batchUpdateResponse.data;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const batchUpdateResponse = await service.presentations.batchUpdate({
+    presentationId,
+    requestBody: {
+      requests,
+    },
+  });
+  console.log(`Added a linked Sheets chart with ID: ${presentationChartId}`);
+  return batchUpdateResponse.data;
 }
 // [END slides_create_sheets_chart]
 
diff --git a/slides/snippets/slides_create_slide.js b/slides/snippets/slides_create_slide.js
index 1d8b3231..2a879b9e 100644
--- a/slides/snippets/slides_create_slide.js
+++ b/slides/snippets/slides_create_slide.js
@@ -40,25 +40,16 @@ async function createSlide(presentationId, pageId) {
       },
     },
   ];
-  // If you wish to populate the slide with elements, add element create requests here,
-  // using the pageId.
-
-  // Execute the request.
-  try {
-    const res = await service.presentations.batchUpdate({
-      presentationId,
-      resource: {
-        requests,
-      },
-    });
-    console.log(
-        `Created slide with ID: ${res.data.replies[0].createSlide.objectId}`,
-    );
-    return res;
-  } catch (err) {
-    // TODO (developer) - handle exception
-    throw err;
-  }
+  const result = await service.presentations.batchUpdate({
+    presentationId,
+    requestBody: {
+      requests,
+    },
+  });
+  console.log(
+      `Created slide with ID: ${result.data.replies[0].createSlide.objectId}`,
+  );
+  return res;
 }
 // [END slides_create_slide]
 
diff --git a/slides/snippets/slides_create_textbox_with_text.js b/slides/snippets/slides_create_textbox_with_text.js
index 24892dcb..481f9047 100644
--- a/slides/snippets/slides_create_textbox_with_text.js
+++ b/slides/snippets/slides_create_textbox_with_text.js
@@ -64,21 +64,16 @@ async function createTextboxWithText(presentationId, pageId) {
       },
     },
   ];
-  // Execute the request.
-  try {
-    const createTextboxWithTextResponse =
-      await service.presentations.batchUpdate({
+  const createTextboxWithTextResponse = await service.presentations.batchUpdate(
+      {
         presentationId,
-        resource: {requests},
-      });
-    const createShapeResponse =
-      createTextboxWithTextResponse.data.replies[0].createShape;
-    console.log(`Created textbox with ID: ${createShapeResponse.objectId}`);
-    return createTextboxWithTextResponse.data;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+        requestBody: {requests},
+      },
+  );
+  const createShapeResponse =
+    createTextboxWithTextResponse.data.replies[0].createShape;
+  console.log(`Created textbox with ID: ${createShapeResponse.objectId}`);
+  return createTextboxWithTextResponse.data;
 }
 // [END slides_create_textbox_with_text]
 
diff --git a/slides/snippets/slides_image_merging.js b/slides/snippets/slides_image_merging.js
index 2756cff8..d8e309f6 100644
--- a/slides/snippets/slides_image_merging.js
+++ b/slides/snippets/slides_image_merging.js
@@ -38,60 +38,55 @@ async function imageMerging(templatePresentationId, imageUrl, customerName) {
   const customerGraphicUrl = imageUrl;
 
   // Duplicate the template presentation using the Drive API.
-  const copyTitle = customerName + ' presentation';
-  try {
-    const driveResponse = await driveService.files.copy({
-      fileId: templatePresentationId,
-      resource: {
-        name: copyTitle,
-      },
-    });
-    const presentationCopyId = driveResponse.data.id;
+  const copyTitle = `${customerName} presentation`;
+  const driveResponse = await driveService.files.copy({
+    fileId: templatePresentationId,
+    requestBody: {
+      name: copyTitle,
+    },
+  });
+  const presentationCopyId = driveResponse.data.id;
 
-    // Create the image merge (replaceAllShapesWithImage) requests.
-    const requests = [
-      {
-        replaceAllShapesWithImage: {
-          imageUrl: logoUrl,
-          replaceMethod: 'CENTER_INSIDE',
-          containsText: {
-            text: '{{company-logo}}',
-            matchCase: true,
-          },
+  // Create the image merge (replaceAllShapesWithImage) requests.
+  const requests = [
+    {
+      replaceAllShapesWithImage: {
+        imageUrl: logoUrl,
+        replaceMethod: 'CENTER_INSIDE',
+        containsText: {
+          text: '{{company-logo}}',
+          matchCase: true,
         },
       },
-      {
-        replaceAllShapesWithImage: {
-          imageUrl: customerGraphicUrl,
-          replaceMethod: 'CENTER_INSIDE',
-          containsText: {
-            text: '{{customer-graphic}}',
-            matchCase: true,
-          },
+    },
+    {
+      replaceAllShapesWithImage: {
+        imageUrl: customerGraphicUrl,
+        replaceMethod: 'CENTER_INSIDE',
+        containsText: {
+          text: '{{customer-graphic}}',
+          matchCase: true,
         },
       },
-    ];
+    },
+  ];
 
-    // Execute the requests for this presentation.
-    const batchUpdateResponse = await slidesService.presentations.batchUpdate({
-      presentationId: presentationCopyId,
-      resource: {
-        requests,
-      },
-    });
-    let numReplacements = 0;
-    for (let i = 0; i < batchUpdateResponse.data.replies.length; ++i) {
-      numReplacements +=
-        batchUpdateResponse.data.replies[i].replaceAllShapesWithImage
-            .occurrencesChanged;
-    }
-    console.log(`Created merged presentation with ID: ${presentationCopyId}`);
-    console.log(`Replaced ${numReplacements} shapes with images.`);
-    return batchUpdateResponse.data;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
+  // Execute the requests for this presentation.
+  const batchUpdateResponse = await slidesService.presentations.batchUpdate({
+    presentationId: presentationCopyId,
+    requestBody: {
+      requests,
+    },
+  });
+  let numReplacements = 0;
+  for (let i = 0; i < batchUpdateResponse.data.replies.length; ++i) {
+    numReplacements +=
+      batchUpdateResponse.data.replies[i].replaceAllShapesWithImage
+          .occurrencesChanged;
   }
+  console.log(`Created merged presentation with ID: ${presentationCopyId}`);
+  console.log(`Replaced ${numReplacements} shapes with images.`);
+  return batchUpdateResponse.data;
 }
 // [END slides_image_merging]
 
diff --git a/slides/snippets/slides_refresh_sheets_chart.js b/slides/snippets/slides_refresh_sheets_chart.js
index fd91c06c..3914e077 100644
--- a/slides/snippets/slides_refresh_sheets_chart.js
+++ b/slides/snippets/slides_refresh_sheets_chart.js
@@ -37,23 +37,16 @@ async function refreshSheetsChart(presentationId, presentationChartId) {
       },
     },
   ];
-
-  // Execute the request.
-  try {
-    const batchUpdateResponse = await service.presentations.batchUpdate({
-      presentationId,
-      resource: {
-        requests,
-      },
-    });
-    console.log(
-        `Refreshed a linked Sheets chart with ID: ${presentationChartId}`,
-    );
-    return batchUpdateResponse.data;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const batchUpdateResponse = await service.presentations.batchUpdate({
+    presentationId,
+    requestBody: {
+      requests,
+    },
+  });
+  console.log(
+      `Refreshed a linked Sheets chart with ID: ${presentationChartId}`,
+  );
+  return batchUpdateResponse.data;
 }
 // [END slides_refresh_sheets_chart]
 
diff --git a/slides/snippets/slides_simple_text_replace.js b/slides/snippets/slides_simple_text_replace.js
index f8486b4d..dd523143 100644
--- a/slides/snippets/slides_simple_text_replace.js
+++ b/slides/snippets/slides_simple_text_replace.js
@@ -48,20 +48,14 @@ async function simpleTextReplace(presentationId, shapeId, replacementText) {
       },
     },
   ];
-  // Execute the requests.
-  try {
-    const batchUpdateResponse = await service.presentations.batchUpdate({
-      presentationId,
-      resource: {
-        requests,
-      },
-    });
-    console.log(`Replaced text in shape with ID: ${shapeId}`);
-    return batchUpdateResponse.data;
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
-  }
+  const batchUpdateResponse = await service.presentations.batchUpdate({
+    presentationId,
+    requestBody: {
+      requests,
+    },
+  });
+  console.log(`Replaced text in shape with ID: ${shapeId}`);
+  return batchUpdateResponse.data;
 }
 // [END slides_simple_text_replace]
 
diff --git a/slides/snippets/slides_text_merging.js b/slides/snippets/slides_text_merging.js
index 31fc605c..937d3536 100644
--- a/slides/snippets/slides_text_merging.js
+++ b/slides/snippets/slides_text_merging.js
@@ -39,91 +39,80 @@ async function textMerging(templatePresentationId, dataSpreadsheetId) {
   // Use the Sheets API to load data, one record per row.
   const responses = [];
   const dataRangeNotation = 'A2:M6';
+  const sheetsResponse = await sheetsService.spreadsheets.values.get({
+    spreadsheetId: dataSpreadsheetId,
+    range: dataRangeNotation,
+  });
+  const values = sheetsResponse.data.values;
 
-  try {
-    const sheetsResponse = await sheetsService.spreadsheets.values.get({
-      spreadsheetId: dataSpreadsheetId,
-      range: dataRangeNotation,
-    });
-    const values = sheetsResponse.data.values;
-
-    // For each record, create a new merged presentation.
-    for (let i = 0; i < values.length; ++i) {
-      const row = values[i];
-      const customerName = row[2]; // name in column 3
-      const caseDescription = row[5]; // case description in column 6
-      const totalPortfolio = row[11]; // total portfolio in column 12
+  // For each record, create a new merged presentation.
+  for (let i = 0; i < values.length; ++i) {
+    const row = values[i];
+    const customerName = row[2]; // name in column 3
+    const caseDescription = row[5]; // case description in column 6
+    const totalPortfolio = row[11]; // total portfolio in column 12
 
-      // Duplicate the template presentation using the Drive API.
-      const copyTitle = customerName + ' presentation';
-      let requests = {
-        name: copyTitle,
-      };
+    // Duplicate the template presentation using the Drive API.
+    const title = `${customerName} presentation`;
 
-      const driveResponse = await driveService.files.copy({
-        fileId: templatePresentationId,
-        requests,
-      });
+    const driveResponse = await driveService.files.copy({
+      fileId: templatePresentationId,
+      requestBody: {
+        title,
+      },
+    });
 
-      const presentationCopyId = driveResponse.data.id;
-      // Create the text merge (replaceAllText) requests for this presentation.
-      requests = [
-        {
-          replaceAllText: {
-            containsText: {
-              text: '{{customer-name}}',
-              matchCase: true,
-            },
-            replaceText: customerName,
+    const presentationCopyId = driveResponse.data.id;
+    // Create the text merge (replaceAllText) requests for this presentation.
+    requests = [
+      {
+        replaceAllText: {
+          containsText: {
+            text: '{{customer-name}}',
+            matchCase: true,
           },
+          replaceText: customerName,
         },
-        {
-          replaceAllText: {
-            containsText: {
-              text: '{{case-description}}',
-              matchCase: true,
-            },
-            replaceText: caseDescription,
+      },
+      {
+        replaceAllText: {
+          containsText: {
+            text: '{{case-description}}',
+            matchCase: true,
           },
+          replaceText: caseDescription,
         },
-        {
-          replaceAllText: {
-            containsText: {
-              text: '{{total-portfolio}}',
-              matchCase: true,
-            },
-            replaceText: totalPortfolio,
+      },
+      {
+        replaceAllText: {
+          containsText: {
+            text: '{{total-portfolio}}',
+            matchCase: true,
           },
+          replaceText: totalPortfolio,
         },
-      ];
-      // Execute the requests for this presentation.
-      const batchUpdateResponse = await slidesService.presentations.batchUpdate(
-          {
-            presentationId: presentationCopyId,
-            resource: {
-              requests,
-            },
-          },
-      );
-      const result = batchUpdateResponse.data;
-      // [START_EXCLUDE silent]
-      responses.push(result.replies);
-      // [END_EXCLUDE]
-      // Count the total number of replacements made.
-      let numReplacements = 0;
-      for (let i = 0; i < result.replies.length; ++i) {
-        numReplacements += result.replies[i].replaceAllText.occurrencesChanged;
-      }
-      console.log(
-          `Created presentation for ${customerName} with ID: ` +
-          presentationCopyId,
-      );
-      console.log(`Replaced ${numReplacements} text instances`);
-      return result;
+      },
+    ];
+    // Execute the requests for this presentation.
+    const batchUpdateResponse = await slidesService.presentations.batchUpdate({
+      presentationId: presentationCopyId,
+      requestBody: {
+        requests,
+      },
+    });
+    const result = batchUpdateResponse.data;
+    // [START_EXCLUDE silent]
+    responses.push(result.replies);
+    // [END_EXCLUDE]
+    // Count the total number of replacements made.
+    let numReplacements = 0;
+    for (let i = 0; i < result.replies.length; ++i) {
+      numReplacements += result.replies[i].replaceAllText.occurrencesChanged;
     }
-  } catch (err) {
-    // TODO (developer) - Handle exception
-    throw err;
+    console.log(
+        `Created presentation for ${customerName} with ID: ${presentationCopyId}`,
+    );
+    console.log(`Replaced ${numReplacements} text instances`);
   }
 }
 // [END slides_text_merging]
diff --git a/slides/snippets/slides_text_style_update.js b/slides/snippets/slides_text_style_update.js
index c8ec7281..6b92c7c7 100644
--- a/slides/snippets/slides_text_style_update.js
+++ b/slides/snippets/slides_text_style_update.js
@@ -93,21 +93,14 @@ async function textStyleUpdate(presentationId, shapeId) {
       },
     },
   ];
-
-  // Execute the requests.
-  try {
-    const batchUpdateResponse = await service.presentations.batchUpdate({
-      presentationId,
-      resource: {
-        requests,
-      },
-    });
-    console.log(`Updated the text style for shape with ID: ${shapeId}`);
-    return batchUpdateResponse.data;
-  } catch (err) {
-    // TODO (developer) - Handle exceptions
-    throw err;
-  }
+  const batchUpdateResponse = await service.presentations.batchUpdate({
+    presentationId,
+    requestBody: {
+      requests,
+    },
+  });
+  console.log(`Updated the text style for shape with ID: ${shapeId}`);
+  return batchUpdateResponse.data;
 }
 // [END slides_text_style_update]
 
diff --git a/slides/snippets/test/helpers.js b/slides/snippets/test/helpers.js
index e82cf2d0..d6e44e46 100644
--- a/slides/snippets/test/helpers.js
+++ b/slides/snippets/test/helpers.js
@@ -13,8 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import {google} from 'googleapis';
+
 import {GoogleAuth} from 'google-auth-library';
+import {google} from 'googleapis';
 
 /**
  * Helper functions for Google Slides
@@ -69,11 +70,11 @@ class Helpers {
    * @return {Promise<string>} A promise to return the presentation ID.
    */
   async createTestPresentation() {
-    const res = await this.slidesService.presentations.create({
+    const result = await this.slidesService.presentations.create({
       title: 'Test Preso',
     });
-    this.deleteFileOnCleanup(res.data.presentationId);
-    return res.data.presentationId;
+    this.deleteFileOnCleanup(result.data.presentationId);
+    return result.data.presentationId;
   }
 
   /**
@@ -99,7 +100,7 @@ class Helpers {
     }
     await this.slidesService.presentations.batchUpdate({
       presentationId,
-      resource: {
+      requestBody: {
         requests,
       },
     });
@@ -147,13 +148,13 @@ class Helpers {
         },
       },
     ];
-    const res = await this.slidesService.presentations.batchUpdate({
+    const result = await this.slidesService.presentations.batchUpdate({
       presentationId,
-      resource: {
+      requestBody: {
         requests,
       },
     });
-    return res.data.replies[0].createShape.objectId;
+    return result.data.replies[0].createShape.objectId;
   }
 
   /**
@@ -179,7 +180,7 @@ class Helpers {
       {
         createSheetsChart: {
           objectId: chartId,
-          spreadsheetId: spreadsheetId,
+          spreadsheetId,
           chartId: sheetChartId,
           linkingMode: 'LINKED',
           elementProperties: {
@@ -200,13 +201,13 @@ class Helpers {
       },
     ];
 
-    const res = await this.slidesService.presentations.batchUpdate({
+    const result = await this.slidesService.presentations.batchUpdate({
       presentationId,
-      resource: {
+      requestBody: {
         requests,
       },
     });
-    return res.data.replies[0].createSheetsChart.objectId;
+    return result.data.replies[0].createSheetsChart.objectId;
   }
 
   /**
@@ -214,8 +215,8 @@ class Helpers {
    * @return {Promise} A promise to return the Google API service.
    */
   async createTestSpreadsheet() {
-    const res = await this.sheetsService.spreadsheets.create({
-      resource: {
+    const result = await this.sheetsService.spreadsheets.create({
+      requestBody: {
         properties: {
           title: 'Test Spreadsheet',
         },
@@ -223,8 +224,8 @@ class Helpers {
       fields: 'spreadsheetId',
     });
 
-    this.deleteFileOnCleanup(res.data.spreadsheetId);
-    return res.data.spreadsheetId;
+    this.deleteFileOnCleanup(result.data.spreadsheetId);
+    return result.data.spreadsheetId;
   }
 
   /**
@@ -235,7 +236,7 @@ class Helpers {
   async populateValues(spreadsheetId) {
     await this.sheetsService.spreadsheets.batchUpdate({
       spreadsheetId,
-      resource: {
+      requestBody: {
         requests: [
           {
             repeatCell: {
diff --git a/slides/snippets/test/test_slides_copy_presentation.js b/slides/snippets/test/test_slides_copy_presentation.js
index 19dd4056..ec435b6a 100644
--- a/slides/snippets/test/test_slides_copy_presentation.js
+++ b/slides/snippets/test/test_slides_copy_presentation.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {copyPresentation} from '../slides_copy_presentation.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
diff --git a/slides/snippets/test/test_slides_create_bulleted_text.js b/slides/snippets/test/test_slides_create_bulleted_text.js
index a7b9d1ed..05f8de8c 100644
--- a/slides/snippets/test/test_slides_create_bulleted_text.js
+++ b/slides/snippets/test/test_slides_create_bulleted_text.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createBulletedText} from '../slides_create_bulleted_text.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
@@ -29,10 +29,7 @@ describe('Presentation snippets', () => {
     const pageIds = await helpers.addSlides(presentationId, 1, 'BLANK');
     const pageId = pageIds[0];
     const boxId = await helpers.createTestTextbox(presentationId, pageId);
-    const response = await createBulletedText(
-        presentationId,
-        boxId,
-    );
+    const response = await createBulletedText(presentationId, boxId);
     expect(1).toEqual(response.replies.length);
   });
 });
diff --git a/slides/snippets/test/test_slides_create_image.js b/slides/snippets/test/test_slides_create_image.js
index 6a1ef3a8..d033c698 100644
--- a/slides/snippets/test/test_slides_create_image.js
+++ b/slides/snippets/test/test_slides_create_image.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createImage} from '../slides_create_image.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
@@ -28,10 +28,7 @@ describe('Presentation snippets', () => {
     const presentationId = await helpers.createTestPresentation();
     const ids = await helpers.addSlides(presentationId, 1, 'BLANK');
     const pageId = ids[0];
-    const response = await createImage(
-        presentationId,
-        pageId,
-    );
+    const response = await createImage(presentationId, pageId);
     expect(response.length).toBe(1);
     const imageId = response[0].createImage.objectId;
     expect(imageId).toBeDefined();
diff --git a/slides/snippets/test/test_slides_create_presentation.js b/slides/snippets/test/test_slides_create_presentation.js
index 16494a6f..886e58d2 100644
--- a/slides/snippets/test/test_slides_create_presentation.js
+++ b/slides/snippets/test/test_slides_create_presentation.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createPresentation} from '../slides_create_presentation.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
@@ -25,9 +25,7 @@ describe('Presentation snippets', () => {
   });
 
   it('should create a presentation', async () => {
-    const presentation = await createPresentation(
-        'Title',
-    );
+    const presentation = await createPresentation('Title');
     expect(presentation).toBeDefined();
     helpers.deleteFileOnCleanup(presentation.data.presentationId);
   });
diff --git a/slides/snippets/test/test_slides_create_sheets_chart.js b/slides/snippets/test/test_slides_create_sheets_chart.js
index d2fcd59b..855cd73d 100644
--- a/slides/snippets/test/test_slides_create_sheets_chart.js
+++ b/slides/snippets/test/test_slides_create_sheets_chart.js
@@ -14,8 +14,8 @@
 // * limitations under the License.
 // */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createSheetsChart} from '../slides_create_sheets_chart.js';
+import {Helpers} from './helpers.js';
 
 // Replace with your test spreadsheets id and charts id
 const CHART_ID = 1107320627;
diff --git a/slides/snippets/test/test_slides_create_slide.js b/slides/snippets/test/test_slides_create_slide.js
index 433d17d4..299562c8 100644
--- a/slides/snippets/test/test_slides_create_slide.js
+++ b/slides/snippets/test/test_slides_create_slide.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createSlide} from '../slides_create_slide.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
@@ -28,10 +28,7 @@ describe('Presentation snippets', () => {
     const presentationId = await helpers.createTestPresentation();
     await helpers.addSlides(presentationId, 3, 'TITLE_AND_TWO_COLUMNS');
     const pageId = 'my_page_id';
-    const response = await createSlide(
-        presentationId,
-        pageId,
-    );
+    const response = await createSlide(presentationId, pageId);
     expect(pageId).toEqual(response.data.replies[0].createSlide.objectId);
   });
 });
diff --git a/slides/snippets/test/test_slides_create_textbox_with_text.js b/slides/snippets/test/test_slides_create_textbox_with_text.js
index 4cae25cc..1738d89c 100644
--- a/slides/snippets/test/test_slides_create_textbox_with_text.js
+++ b/slides/snippets/test/test_slides_create_textbox_with_text.js
@@ -15,8 +15,8 @@
  */
 
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {createTextboxWithText} from '../slides_create_textbox_with_text.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
@@ -29,10 +29,7 @@ describe('Presentation snippets', () => {
     const presentationId = await helpers.createTestPresentation();
     const ids = await helpers.addSlides(presentationId, 1, 'BLANK');
     const pageId = ids[0];
-    const response = await createTextboxWithText(
-        presentationId,
-        pageId,
-    );
+    const response = await createTextboxWithText(presentationId, pageId);
     expect(response.replies.length).toEqual(2);
     const boxId = response.replies[0].createShape.objectId;
     expect(boxId).toBeDefined();
diff --git a/slides/snippets/test/test_slides_image_merging.js b/slides/snippets/test/test_slides_image_merging.js
index 4f0e4abe..0b37a4a1 100644
--- a/slides/snippets/test/test_slides_image_merging.js
+++ b/slides/snippets/test/test_slides_image_merging.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {imageMerging} from '../slides_image_merging.js';
+import {Helpers} from './helpers.js';
 
 const TEMPLATE_PRESENTATION_ID = '1MmTR712m7U_kgeweE57POWwkEyWAV17AVAWjpmltmIg';
 const IMAGE_URL =
diff --git a/slides/snippets/test/test_slides_refresh_sheets_chart.js b/slides/snippets/test/test_slides_refresh_sheets_chart.js
index 16c9f0c5..e0fcf0bd 100644
--- a/slides/snippets/test/test_slides_refresh_sheets_chart.js
+++ b/slides/snippets/test/test_slides_refresh_sheets_chart.js
@@ -14,8 +14,8 @@
 // * limitations under the License.
 // */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {refreshSheetsChart} from '../slides_refresh_sheets_chart.js';
+import {Helpers} from './helpers.js';
 
 // Replace with your test spreadsheets id and charts id
 const CHART_ID = 1107320627;
@@ -38,10 +38,7 @@ describe('Presentation snippets', () => {
         DATA_SPREADSHEET_ID,
         CHART_ID,
     );
-    const response = await refreshSheetsChart(
-        presentationId,
-        sheetChartId,
-    );
+    const response = await refreshSheetsChart(presentationId, sheetChartId);
     expect(1).toEqual(response.replies.length);
   });
 });
diff --git a/slides/snippets/test/test_slides_simple_text_replace.js b/slides/snippets/test/test_slides_simple_text_replace.js
index a40c2a9e..2fb56916 100644
--- a/slides/snippets/test/test_slides_simple_text_replace.js
+++ b/slides/snippets/test/test_slides_simple_text_replace.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {simpleTextReplace} from '../slides_simple_text_replace.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
diff --git a/slides/snippets/test/test_slides_text_merging.js b/slides/snippets/test/test_slides_text_merging.js
index 1e20f226..28786bb9 100644
--- a/slides/snippets/test/test_slides_text_merging.js
+++ b/slides/snippets/test/test_slides_text_merging.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {textMerging} from '../slides_text_merging.js';
+import {Helpers} from './helpers.js';
 
 const TEMPLATE_PRESENTATION_ID = '1MmTR712m7U_kgeweE57POWwkEyWAV17AVAWjpmltmIg';
 
@@ -29,10 +29,7 @@ describe('Presentation snippets', () => {
   it('should merge text', async () => {
     let sheetId = await helpers.createTestSpreadsheet();
     sheetId = await helpers.populateValues(sheetId);
-    const responses = await textMerging(
-        TEMPLATE_PRESENTATION_ID,
-        sheetId,
-    );
+    const responses = await textMerging(TEMPLATE_PRESENTATION_ID, sheetId);
     // console.log(responses);
     expect(3).toEqual(responses.replies.length);
     let numReplacements = 0;
diff --git a/slides/snippets/test/test_slides_text_style_update.js b/slides/snippets/test/test_slides_text_style_update.js
index b12cd9cc..9554621f 100644
--- a/slides/snippets/test/test_slides_text_style_update.js
+++ b/slides/snippets/test/test_slides_text_style_update.js
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 import {expect} from 'expect';
-import {Helpers} from './helpers.js';
 import {textStyleUpdate} from '../slides_text_style_update.js';
+import {Helpers} from './helpers.js';
 
 describe('Presentation snippets', () => {
   const helpers = new Helpers();
@@ -29,10 +29,7 @@ describe('Presentation snippets', () => {
     const pageIds = await helpers.addSlides(presentationId, 1, 'BLANK');
     const pageId = pageIds[0];
     const boxId = await helpers.createTestTextbox(presentationId, pageId);
-    const response = await textStyleUpdate(
-        presentationId,
-        boxId,
-    );
+    const response = await textStyleUpdate(presentationId, boxId);
     expect(3).toEqual(response.replies.length);
   });
 });
diff --git a/slides/snippets/tsconfig.json b/slides/snippets/tsconfig.json
index c5b794f3..2fb554f9 100644
--- a/slides/snippets/tsconfig.json
+++ b/slides/snippets/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/tasks/quickstart/index.js b/tasks/quickstart/index.js
index 3f4144eb..6cac8f83 100644
--- a/tasks/quickstart/index.js
+++ b/tasks/quickstart/index.js
@@ -13,87 +13,32 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/* eslint-disable camelcase */
+
 // [START tasks_quickstart]
-import fs from 'fs/promises';
-import path from 'path';
-import process from 'process';
+
+import path from 'node:path';
+import process from 'node:process';
 import {authenticate} from '@google-cloud/local-auth';
 import {google} from 'googleapis';
 
-// If modifying these scopes, delete token.json.
 const SCOPES = ['https://www.googleapis.com/auth/tasks.readonly'];
-// The file token.json stores the user's access and refresh tokens, and is
-// created automatically when the authorization flow completes for the first
-// time.
-const TOKEN_PATH = path.join(process.cwd(), 'token.json');
 const CREDENTIALS_PATH = path.join(process.cwd(), 'credentials.json');
 
 /**
- * Reads previously authorized credentials from the save file.
- *
- * @return {Promise<OAuth2Client|null>}
- */
-async function loadSavedCredentialsIfExist() {
-  try {
-    const content = await fs.readFile(TOKEN_PATH);
-    const credentials = JSON.parse(content);
-    return google.auth.fromJSON(credentials);
-  } catch (err) {
-    return null;
-  }
-}
-
-/**
- * Serializes credentials to a file compatible with GoogleAuth.fromJSON.
- *
- * @param {OAuth2Client} client
- * @return {Promise<void>}
- */
-async function saveCredentials(client) {
-  const content = await fs.readFile(CREDENTIALS_PATH);
-  const keys = JSON.parse(content);
-  const key = keys.installed || keys.web;
-  const payload = JSON.stringify({
-    type: 'authorized_user',
-    client_id: key.client_id,
-    client_secret: key.client_secret,
-    refresh_token: client.credentials.refresh_token,
-  });
-  await fs.writeFile(TOKEN_PATH, payload);
-}
-
-/**
- * Load or request or authorization to call APIs.
- *
+ * Lists the user's first 10 task lists.
  */
-async function authorize() {
-  let client = await loadSavedCredentialsIfExist();
-  if (client) {
-    return client;
-  }
-  client = await authenticate({
+async function listTaskLists() {
+  const auth = await authenticate({
     scopes: SCOPES,
     keyfilePath: CREDENTIALS_PATH,
   });
-  if (client.credentials) {
-    await saveCredentials(client);
-  }
-  return client;
-}
 
-/**
- * Lists the user's first 10 task lists.
- *
- * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
- */
-async function listTaskLists(auth) {
   const service = google.tasks({version: 'v1', auth});
-  const res = await service.tasklists.list({
+  const result = await service.tasklists.list({
     maxResults: 10,
   });
-  const taskLists = res.data.items;
-  if (taskLists && taskLists.length) {
+  const taskLists = result.data.items;
+  if (taskLists?.length) {
     console.log('Task lists:');
     taskLists.forEach((taskList) => {
       console.log(`${taskList.title} (${taskList.id})`);
@@ -103,6 +48,6 @@ async function listTaskLists(auth) {
   }
 }
 
-authorize().then(listTaskLists).catch(console.error);
+await listTaskLists();
 
 // [END tasks_quickstart]
diff --git a/tasks/quickstart/package.json b/tasks/quickstart/package.json
index aac9d5eb..472c210b 100644
--- a/tasks/quickstart/package.json
+++ b/tasks/quickstart/package.json
@@ -13,6 +13,7 @@
     "googleapis": "catalog:"
   },
   "devDependencies": {
+    "google-auth-library": "catalog:",
     "typescript": "catalog:"
   },
   "engines": {
diff --git a/tasks/quickstart/tsconfig.json b/tasks/quickstart/tsconfig.json
index 4280ce73..cae9d8e1 100644
--- a/tasks/quickstart/tsconfig.json
+++ b/tasks/quickstart/tsconfig.json
@@ -1,3 +1,4 @@
 {
-  "extends": "../../tsconfig.base.json"
-}
\ No newline at end of file
+  "extends": "../../tsconfig.base.json",
+  "include": ["**/*.js"]
+}
diff --git a/tsconfig.base.json b/tsconfig.base.json
index f4ac5f13..3301625d 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -8,13 +8,7 @@
     "esModuleInterop": true,
     "skipLibCheck": true,
     "forceConsistentCasingInFileNames": true,
-    "outDir": "./dist",
+    "outDir": "./dist"
   },
-  "include": [
-    "**/*.js"
-  ],
-  "exclude": [
-    "node_modules",
-    "dist"
-  ]
-}
\ No newline at end of file
+  "exclude": ["node_modules", "dist"]
+}