chore: import upstream snapshot with attribution

integrations/gmail/src/actions/list-labels.ts

@@ -0,0 +1,17 @@
+import { GoogleClient } from '../google-api/google-client'
+import { wrapAction } from './action-wrapper'
+
+export const listLabels = wrapAction(
+  { actionName: 'listLabels', errorMessageWhenFailed: 'Failed to list labels' },
+  async ({ googleClient }: { googleClient: Awaited<ReturnType<typeof GoogleClient.create>> }) => {
+    const result = await googleClient.labels.list()
+
+    return {
+      labels: result.labels?.map((label) => ({
+        id: label.id ?? undefined,
+        name: label.name ?? undefined,
+        type: label.type ?? undefined,
+      })),
+    }
+  }
+)