code: def assertPushed(self):
      self.assertDirectoryNotEmpty(self._model_push.uri)
      self.assertEqual(
          1, self._model_push.get_int_custom_property("pushed")
      )
  
imports: import copy
  import os
  from typing import Any, Dict
  from unittest import mock
  import tensorflow
  from tfx.dsl.io import fileio
  from tfx.extensions.google_cloud_ai_platform import constants
  from tfx.extensions.google_cloud_ai_platform.pusher import executor
  from tfx.types import standard_artifacts
  from tfx.types import standard_component_specs
  from tfx.utils import json_utils
  from tfx.utils import name_utils
  from tfx.utils import telemetry_utils
label_desc: Use image node_id 6 for calling the ExecutorTest obj's underlying member method code with example usage: obj.assertPushed() without return types