@java.lang.Override
  public com.google.cloud.speech.v1.PhraseSet getPhraseSets(int index) {
    return phraseSets_.get(index);
  }
<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.v1.PhraseSet phrase_sets = 1;</code>
java-speech/proto-google-cloud-speech-v1/src/main/java/com/google/cloud/speech/v1/SpeechAdaptation.java