code: def setUp(self):
      super().setUp()
      self.examples = channel_utils.as_channel(
          [standard_artifacts.Examples()]
      )
      self.schema = channel_utils.as_channel(
          [standard_artifacts.Schema()]
      )
      self.transform_graph = channel_utils.as_channel(
          [standard_artifacts.TransformGraph()]
      )
      self.train_args = trainer_pb2.TrainArgs(num_steps=100)
      self.eval_args = trainer_pb2.EvalArgs(num_steps=50)
      self.tune_args = tuner_pb2.TuneArgs(num_parallel_trials=3)
      self.custom_config = {"key": "value"}
  
file_path: tfx/tfx/extensions/google_cloud_ai_platform/tuner/component_test.py
imports: import tensorflow
  from tfx.extensions.google_cloud_ai_platform.tuner import component
  from tfx.proto import trainer_pb2
  from tfx.proto import tuner_pb2
  from tfx.types import channel_utils
  from tfx.types import standard_artifacts
label_desc: Use image node_id 1 for calling the TunerTest obj's underlying member method code with example usage: obj.setUp() without return types