public int getModelsCount() {
      return internalGetModels().getMap().size();
    }
<pre>
Required. Specify up to 10 language codes here.
</pre>

<code>repeated string target_language_codes = 3 [(.google.api.field_behavior) = REQUIRED];
</code>

@param value The bytes of the targetLanguageCodes to add.
@return This builder for chaining.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/BatchTranslateTextRequest.java