@Override
  public String toString() {
    return serializedPipelineOptions;
  }
@Test
  public void equalityTest() {
    PipelineOptions options = PipelineOptionsFactory.create();
    SerializablePipelineOptions serializablePipelineOptions =
        new SerializablePipelineOptions(options);
    String json = serializablePipelineOptions.toString();
    SerializablePipelineOptions serializablePipelineOptions2 =
        new SerializablePipelineOptions(json);
    assertEquals(
        "SerializablePipelineOptions created from options and from json differ",
        serializablePipelineOptions,
        serializablePipelineOptions2);
  }