public int getModelsCount() {
    return internalGetModels().getMap().size();
  }
<pre>
Required. Output configuration.
If 2 input configs match to the same file (that is, same input path),
we don't generate output for duplicate inputs.
</pre>

<code>
.google.cloud.translation.v3beta1.BatchDocumentOutputConfig output_config = 5 [(.google.api.field_behavior) = REQUIRED];
</code>
java-translate/proto-google-cloud-translate-v3beta1/src/main/java/com/google/cloud/translate/v3beta1/BatchTranslateDocumentRequest.java