code: def node_context(worker: Worker) -> NodeServiceContext:
      return NodeServiceContext(node=worker)
  
imports: import pytest
  from syft.node.credentials import UserLoginCredentials
  from syft.node.worker import Worker
  from syft.service.context import AuthedServiceContext
  from syft.service.context import NodeServiceContext
  from syft.service.context import UnauthedServiceContext
  from syft.service.user.user import User
  from syft.service.user.user import UserCreate
  from syft.service.user.user import UserPrivateKey
  from syft.service.user.user import UserSearch
  from syft.service.user.user import UserUpdate
  from syft.service.user.user import UserView
  from syft.service.user.user_roles import ServiceRole
  from syft.service.user.user_service import UserService
  from syft.service.user.user_stash import UserStash
  from syft.store.document_store import DocumentStore
label_desc: Use image node_id 14 for calling a global function with example usage: node_context(worker) and returns: NodeServiceContext