private void ensureGlossaryTranslationsIsMutable() {
      if (!((bitField0_ & 0x00000004) != 0)) {
        glossaryTranslations_ =
            new java.util.ArrayList<com.google.cloud.translate.v3.AdaptiveMtTranslation>(
                glossaryTranslations_);
        bitField0_ |= 0x00000004;
      }
    }
<pre>
Output only. The translation's language code.
</pre>

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

@param value The bytes for languageCode to set.
@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/AdaptiveMtTranslateResponse.java