@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    if (getAlternativesCount() > 0) {
      hash = (37 * hash) + ALTERNATIVES_FIELD_NUMBER;
      hash = (53 * hash) + getAlternativesList().hashCode();
    }
    hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
    hash = (53 * hash) + getLanguageCode().hashCode();
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Output only. The [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt)
language tag of the language in this result. This language code was
detected to have the most likelihood of being spoken in the audio.
</pre>

<code>string language_code = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>

@return The bytes for languageCode.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/SpeechTranscription.java