code: def testEncodeTemplatedExecutorContainerSpec_withConcatAllText(self):
      specs = executor_specs.TemplatedExecutorContainerSpec(
          image="image",
          command=[self._text_concat_placeholder],
          args=[self._text_concat_placeholder],
      )
      encode_result = specs.encode()
      self.assertProtoEquals(
          """
        image: "image"
        commands {
          value {
            string_value: "texttext1text2"
          }
        }
        args {
          value {
            string_value: "texttext1text2"
          }
        }""",
          encode_result,
      )
  
file_path: tfx/tfx/dsl/component/experimental/executor_specs_test.py
imports: import tensorflow
  from tfx import types
  from tfx.dsl.component.experimental import executor_specs
  from tfx.dsl.component.experimental import placeholders
  from tfx.types import channel
  from tfx.types import component_spec
  from tfx.types import standard_artifacts
label_desc: Use image node_id 3 for calling the ExecutorSpecsTest obj's underlying member method code with example usage: obj.testEncodeTemplatedExecutorContainerSpec_withConcatAllText() without return types