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

<code>.google.cloud.speech.v2.DeletePhraseSetRequest delete_phrase_set_request = 19;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/OperationMetadata.java