code: def authed_context(
      admin_user: User, worker: Worker
  ) -> AuthedServiceContext:
      return AuthedServiceContext(
          credentials=test_verify_key, node=worker
      )
  
file_path: PySyft/packages/syft/tests/syft/notifications/fixtures.py
imports: import pytest
  from syft.node.credentials import SyftSigningKey
  from syft.node.credentials import SyftVerifyKey
  from syft.node.worker import Worker
  from syft.service.context import AuthedServiceContext
  from syft.service.notification.notification_service import NotificationService
  from syft.service.notification.notification_stash import NotificationStash
  from syft.service.notification.notifications import CreateNotification
  from syft.service.notification.notifications import Notification
  from syft.service.user.user import User
  from syft.store.linked_obj import LinkedObject
  from syft.types.datetime import DateTime
  from syft.types.uid import UID
label_desc: Use image node_id 3 for calling a global function with example usage: authed_context(admin_user, worker) and returns: AuthedServiceContext