public int getLanguageCodesCount() {
    return languageCodes_.size();
  }
<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>

@return The count of languageCodes.
java-texttospeech/proto-google-cloud-texttospeech-v1/src/main/java/com/google/cloud/texttospeech/v1/Voice.java