@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    if (hasPhraseSet()) {
      hash = (37 * hash) + PHRASE_SET_FIELD_NUMBER;
      hash = (53 * hash) + getPhraseSet().hashCode();
    }
    if (hasUpdateMask()) {
      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
      hash = (53 * hash) + getUpdateMask().hashCode();
    }
    hash = (37 * hash) + VALIDATE_ONLY_FIELD_NUMBER;
    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getValidateOnly());
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
If set, validate the request and preview the updated PhraseSet, but do not
actually update it.
</pre>

<code>bool validate_only = 4;</code>

@return The validateOnly.
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/UpdatePhraseSetRequest.java