include missing dependencies

Author: davidzhao

pubspec.lock

@@ -2,7 +2,7 @@
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
   async:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: async
       url: "https://pub.dartlang.org"
@@ -37,7 +37,7 @@ packages:
     source: hosted
     version: "1.1.0"
   collection:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: collection
       url: "https://pub.dartlang.org"
@@ -72,7 +72,7 @@ packages:
     source: hosted
     version: "6.1.2"
   fixnum:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: fixnum
       url: "https://pub.dartlang.org"
@@ -138,7 +138,7 @@ packages:
     source: hosted
     version: "0.12.10"
   meta:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: meta
       url: "https://pub.dartlang.org"

pubspec.yaml

@@ -10,7 +10,10 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-
+  async: ^2.8.1
+  collection: ^1.15.0
+  fixnum: ^1.0.0
+  meta: ^1.7.0
   http: ^0.13.3
   logging: ^1.0.2
   uuid: ^3.0.4