starting to add qm sessions and symbols

libs/utils/src/common.ts

@@ -5,3 +5,7 @@ export function createProxyUrl(proxy: any): string {
   }
   return `${protocol}://${host}:${port}`;
 }
+
+export function sleep(ms: number): Promise<void> {
+  return new Promise(resolve => setTimeout(resolve, ms));
+}