private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.speech.v1p1beta1.PhraseSet,
            com.google.cloud.speech.v1p1beta1.PhraseSet.Builder,
            com.google.cloud.speech.v1p1beta1.PhraseSetOrBuilder>
        getPhraseSetsFieldBuilder() {
      if (phraseSetsBuilder_ == null) {
        phraseSetsBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.speech.v1p1beta1.PhraseSet,
                com.google.cloud.speech.v1p1beta1.PhraseSet.Builder,
                com.google.cloud.speech.v1p1beta1.PhraseSetOrBuilder>(
                phraseSets_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
        phraseSets_ = null;
      }
      return phraseSetsBuilder_;
    }
<pre>
A collection of phrase sets. To specify the hints inline, leave the
phrase set's `name` blank and fill in the rest of its fields. Any
phrase set can use any custom class.
</pre>

<code>repeated .google.cloud.speech.v1p1beta1.PhraseSet phrase_sets = 1;</code>
java-speech/proto-google-cloud-speech-v1p1beta1/src/main/java/com/google/cloud/speech/v1p1beta1/SpeechAdaptation.java