public Builder clearPhraseSet() {
      bitField0_ = (bitField0_ & ~0x00000001);
      phraseSet_ = null;
      if (phraseSetBuilder_ != null) {
        phraseSetBuilder_.dispose();
        phraseSetBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
Required. The PhraseSet to create.
</pre>

<code>
.google.cloud.speech.v2.PhraseSet phrase_set = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/CreatePhraseSetRequest.java