class_docstr: A service job manager for environments without service jobs support.
class_docstr_tok: ["A","service","job","manager","for","environments","without","service","jobs","support","."]
code: def ensure_node_services(
      self,
      pipeline_state: pstate.PipelineState,
      node_id: str,
      backfill_token: str = "",
  ) -> ServiceStatus:
      del pipeline_state, node_id
      raise NotImplementedError("Service jobs not supported.")
  
imports: import abc
  import dataclasses
  import enum
  from typing import Optional
  from absl import logging
  from tfx.orchestration.experimental.core import pipeline_state
label_desc: Use image node_id 1 for calling the DummyServiceJobManager obj's underlying member method code with example usage: obj.ensure_node_services(pipeline_state, node_id, backfill_token) without return types