public static com.google.cloud.translate.v3beta1.Glossary.LanguageCodesSet parseFrom(
        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
      return PARSER.parseFrom(data);
    }
<pre>
The BCP-47 language code(s) for terms defined in the glossary.
All entries are unique. The list contains at least two entries.
Expected to be an exact match for GlossaryTerm.language_code.
</pre>

<code>repeated string language_codes = 1;</code>

@param index The index of the value to return.
@return The bytes of the languageCodes at the given index.
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/Glossary.java