public Builder clearLanguageCode() {
      languageCode_ = getDefaultInstance().getLanguageCode();
      bitField0_ = (bitField0_ & ~0x00000002);
      onChanged();
      return this;
    }
<pre>
Output only. The translation's language code.
</pre>

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

@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/AdaptiveMtTranslateResponse.java