code: def register_migration_state(
      self,
      context: AuthedServiceContext,
      current_version: int,
      canonical_name: str,
  ) -> Union[SyftObjectMigrationState, SyftError]:
      obj = SyftObjectMigrationState(
          current_version=current_version, canonical_name=canonical_name
      )
      result = self.stash.set(
          migration_state=obj, credentials=context.credentials
      )
  
      if result.is_err():
          return SyftError(message=f"{result.err()}")
  
      return result.ok()
  
file_path: PySyft/packages/syft/src/syft/service/object_search/migration_state_service.py
imports: from typing import Union
  from ...serde.serializable import serializable
  from ...store.document_store import DocumentStore
  from ..context import AuthedServiceContext
  from ..response import SyftError
  from ..service import AbstractService
  from ..service import service_method
  from .object_migration_state import SyftMigrationStateStash
  from .object_migration_state import SyftObjectMigrationState
label_desc: Use image node_id 4 for calling the MigrateStateService obj's underlying member method code with example usage: obj.register_migration_state(context, current_version, canonical_name) and returns: result, SyftError