public com.google.cloud.speech.v2.CreateCustomClassRequest.Builder
        getCreateCustomClassRequestBuilder() {
      return getCreateCustomClassRequestFieldBuilder().getBuilder();
    }
<pre>
The CreateCustomClassRequest that spawned the Operation.
</pre>

<code>.google.cloud.speech.v2.CreateCustomClassRequest create_custom_class_request = 13;
</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/OperationMetadata.java