code: def testExecutorClassSpecCopy(self):
      spec = executor_spec.ExecutorClassSpec(_DummyExecutor)
      spec.add_extra_flags("a")
      spec_copy = spec.copy()
      del spec
      self.assertProtoEquals(
          """
          class_path: "__main__._DummyExecutor"
          extra_flags: "a"
          """,
          spec_copy.encode(),
      )
  
file_path: tfx/tfx/dsl/components/base/executor_spec_test.py
imports: import tensorflow
  from tfx.dsl.components.base import base_executor
  from tfx.dsl.components.base import executor_spec
label_desc: Use image node_id 2 for calling the ExecutorSpecTest obj's underlying member method code with example usage: obj.testExecutorClassSpecCopy() without return types