chore: add ts type again

Author: coodos

infrastructure/w3id/src/utils/rand.ts

@@ -5,18 +5,18 @@
  * @returns {string}
  */
 
-export function generateRandomAlphaNum(length = 16): string {
-	const chars =
-		"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
-	let result = "";
-	const charsLength = chars.length;
-	const randomValues = new Uint32Array(length);
+export function generateRandomAlphaNum(length: number = 16): string {
+    const chars =
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+    let result = "";
+    const charsLength = chars.length;
+    const randomValues = new Uint32Array(length);
 
-	crypto.getRandomValues(randomValues);
+    crypto.getRandomValues(randomValues);
 
-	for (let i = 0; i < length; i++) {
-		result += chars.charAt(randomValues[i] % charsLength);
-	}
+    for (let i = 0; i < length; i++) {
+        result += chars.charAt(randomValues[i] % charsLength);
+    }
 
-	return result;
+    return result;
 }