code: def testDoWithTrainerFn(self):
      self._exec_properties[
          standard_component_specs.TRAINER_FN_KEY
      ] = self._trainer_fn
      self._do(self._trainer_executor)
      self._verify_model_exports()
      self._verify_model_run_exports()
  
imports: import copy
  import json
  import os
  from unittest import mock
  import tensorflow
  from tfx.components.testdata.module_file import trainer_module
  from tfx.components.trainer import executor
  from tfx.dsl.io import fileio
  from tfx.proto import trainer_pb2
  from tfx.types import artifact_utils
  from tfx.types import standard_artifacts
  from tfx.types import standard_component_specs
  from tfx.utils import io_utils
  from tfx.utils import name_utils
  from tfx.utils import path_utils
  from tfx.utils import proto_utils
label_desc: Use image node_id 10 for calling the ExecutorTest obj's underlying member method code with example usage: obj.testDoWithTrainerFn() without return types