public java.lang.String getLanguageCodes(int index) {
      return languageCodes_.get(index);
    }
<pre>
The languages that this voice supports, expressed as
[BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags (e.g.
"en-US", "es-419", "cmn-tw").
</pre>

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

@param index The index of the element to return.
@return The languageCodes at the given index.
java-texttospeech/proto-google-cloud-texttospeech-v1beta1/src/main/java/com/google/cloud/texttospeech/v1beta1/Voice.java