code: def _create_push_step(tag: str) -> BuildStep:
      return BuildStep(
          step_id=f"{tag}-push", args=["push", tag], dependencies=[tag]
      )
  
imports: from absl import flags, app, logging
  from copy import copy
  from typing import Dict, List, Any, NamedTuple, Optional, Set
  from enum import Enum
  import json
  import pprint
label_desc: Use image node_id 1 for calling a global function with example usage: _create_push_step(tag) and returns: BuildStep