code: def setUp(self):
      super().setUp()
  
      self.examples = channel_utils.as_channel(
          [standard_artifacts.Examples()]
      )
      self.transform_graph = channel_utils.as_channel(
          [standard_artifacts.TransformGraph()]
      )
      self.schema = channel_utils.as_channel(
          [standard_artifacts.Schema()]
      )
      self.hyperparameters = channel_utils.as_channel(
          [standard_artifacts.HyperParameters()]
      )
      self.train_args = trainer_pb2.TrainArgs(
          splits=["train"], num_steps=100
      )
      self.eval_args = trainer_pb2.EvalArgs(
          splits=["eval"], num_steps=50
      )
  
imports: import tensorflow
  from tfx.components.trainer import component
  from tfx.components.trainer import executor
  from tfx.dsl.components.base import executor_spec
  from tfx.orchestration import data_types
  from tfx.proto import trainer_pb2
  from tfx.types import channel_utils
  from tfx.types import standard_artifacts
  from tfx.types import standard_component_specs
label_desc: Use image node_id 1 for calling the ComponentTest obj's underlying member method code with example usage: obj.setUp() without return types