code: def get_worker_by_name(
      self, credentials: SyftVerifyKey, worker_name: str
  ) -> Result[Optional[SyftWorker], str]:
      qks = QueryKeys(
          qks=[WorkerContainerNamePartitionKey.with_obj(worker_name)]
      )
      return self.query_one(credentials=credentials, qks=qks)
  
file_path: PySyft/packages/syft/src/syft/service/worker/worker_stash.py
imports: from typing import List
  from typing import Optional
  from typing import Union
  from result import Result
  from ...node.credentials import SyftVerifyKey
  from ...serde.serializable import serializable
  from ...store.document_store import BaseUIDStoreStash
  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 ...util.telemetry import instrument
  from ..action.action_permissions import ActionObjectPermission
  from ..action.action_permissions import ActionPermission
  from .worker_pool import SyftWorker
label_desc: Use image node_id 3 for calling the WorkerStash obj's underlying member method code with example usage: obj.get_worker_by_name(credentials, worker_name) and returns: self