private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.speech.v1p1beta1.PhraseSet,
            com.google.cloud.speech.v1p1beta1.PhraseSet.Builder,
            com.google.cloud.speech.v1p1beta1.PhraseSetOrBuilder>
        getPhraseSetFieldBuilder() {
      if (phraseSetBuilder_ == null) {
        phraseSetBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.speech.v1p1beta1.PhraseSet,
                com.google.cloud.speech.v1p1beta1.PhraseSet.Builder,
                com.google.cloud.speech.v1p1beta1.PhraseSetOrBuilder>(
                getPhraseSet(), getParentForChildren(), isClean());
        phraseSet_ = null;
      }
      return phraseSetBuilder_;
    }
<pre>
Required. The phrase set to create.
</pre>

<code>
.google.cloud.speech.v1p1beta1.PhraseSet phrase_set = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/CreatePhraseSetRequest.java