public com.google.cloud.translate.v3beta1.SupportedLanguage.Builder getLanguagesBuilder(
        int index) {
      return getLanguagesFieldBuilder().getBuilder(index);
    }
<pre>
A list of supported language responses. This list contains an entry
for each language the Translation API supports.
</pre>

<code>repeated .google.cloud.translation.v3beta1.SupportedLanguage languages = 1;</code>
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/SupportedLanguages.java