docstr: Get a User Code Item
docstr_tok: ["Get","a","User","Code","Item"]
code: def get_code_by_uid(
      self, context: AuthedServiceContext, uid: UID
  ) -> Union[SyftSuccess, SyftError]:
      """Get a User Code Item"""
      result = self.stash.get_by_uid(context.credentials, uid=uid)
      if result.is_ok():
          code_history = result.ok()
          return code_history
      return SyftError(message=result.err())
  
imports: from typing import List
  from typing import Optional
  from typing import Union
  from ...serde.serializable import serializable
  from ...store.document_store import DocumentStore
  from ...types.uid import UID
  from ...util.telemetry import instrument
  from ..code.user_code import SubmitUserCode
  from ..code.user_code import UserCode
  from ..context import AuthedServiceContext
  from ..response import SyftError
  from ..response import SyftSuccess
  from ..service import AbstractService
  from ..service import service_method
  from ..user.user_roles import DATA_OWNER_ROLE_LEVEL
  from ..user.user_roles import DATA_SCIENTIST_ROLE_LEVEL
  from .code_history import CodeHistoriesDict
  from .code_history import CodeHistory
  from .code_history import CodeHistoryView
  from .code_history import UsersCodeHistoriesDict
  from .code_history_stash import CodeHistoryStash
label_desc: Use image node_id 4 for calling the CodeHistoryService obj's underlying member method code with example usage: obj.get_code_by_uid(context, uid) and returns: SyftError, code_history