code: def testBuildContainerTask(self):
      task = test_utils.DummyProducerComponent(
          output1=channel_utils.as_channel(
              [standard_artifacts.Model()]
          ),
          param1="value1",
      )
      deployment_config = pipeline_pb2.PipelineDeploymentConfig()
      component_defs = {}
      my_builder = step_builder.StepBuilder(
          node=task,
          image="gcr.io/tensorflow/tfx:latest",  # Note this has no effect here.
          deployment_config=deployment_config,
          component_defs=component_defs,
          dsl_context_reg=dsl_context_registry.get(),
      )
      actual_step_spec = self._sole(my_builder.build())
      actual_component_def = self._sole(component_defs)
  
      self.assertProtoEquals(
          test_utils.get_proto_from_test_data(
              "expected_dummy_container_spec_component.pbtxt",
              pipeline_pb2.ComponentSpec(),
          ),
          actual_component_def,
      )
      self.assertProtoEquals(
          test_utils.get_proto_from_test_data(
              "expected_dummy_container_spec_task.pbtxt",
              pipeline_pb2.PipelineTaskSpec(),
          ),
          actual_step_spec,
      )
      self.assertProtoEquals(
          test_utils.get_proto_from_test_data(
              "expected_dummy_container_spec_executor.pbtxt",
              pipeline_pb2.PipelineDeploymentConfig(),
          ),
          deployment_config,
      )
  
imports: from typing import Any, Dict
  from kfp.pipeline_spec import pipeline_spec_pb2
  import tensorflow
  from tfx import components
  from tfx import v1
  from tfx.dsl.components.common import importer
  from tfx.dsl.components.common import resolver
  from tfx.dsl.context_managers import dsl_context_registry
  from tfx.dsl.experimental.conditionals import conditional
  from tfx.dsl.input_resolution.strategies import latest_artifact_strategy
  from tfx.dsl.input_resolution.strategies import latest_blessed_model_strategy
  from tfx.extensions.google_cloud_big_query.example_gen import component
  from tfx.orchestration import data_types
  from tfx.orchestration.kubeflow import decorators
  from tfx.orchestration.kubeflow.v2 import parameter_utils
  from tfx.orchestration.kubeflow.v2 import step_builder
  from tfx.orchestration.kubeflow.v2 import test_utils
  from tfx.proto import example_gen_pb2
  from tfx.types import channel
  from tfx.types import channel_utils
  from tfx.types import standard_artifacts
label_desc: Use image node_id 3 for calling the StepBuilderTest obj's underlying member method code with example usage: obj.testBuildContainerTask() without return types