code: def admin_user(self):
      return self.get_by_role(
          credentials=self.admin_verify_key().ok(),
          role=ServiceRole.ADMIN,
      )
  
imports: from typing import List
  from typing import Optional
  from result import Ok
  from result import Result
  from ...node.credentials import SyftSigningKey
  from ...node.credentials import SyftVerifyKey
  from ...serde.serializable import serializable
  from ...store.document_store import BaseStash
  from ...store.document_store import DocumentStore
  from ...store.document_store import PartitionKey
  from ...store.document_store import PartitionSettings
  from ...store.document_store import QueryKeys
  from ...store.document_store import UIDPartitionKey
  from ...types.uid import UID
  from ...util.telemetry import instrument
  from ..action.action_permissions import ActionObjectPermission
  from ..response import SyftSuccess
  from .user import User
  from .user_roles import ServiceRole
label_desc: Use image node_id 4 for calling the UserStash obj's underlying member method code with example usage: obj.admin_user() and returns: self