@java.lang.Override
  public com.google.protobuf.ByteString getModelBytes() {
    java.lang.Object ref = model_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      model_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }
<pre>
Only present when 'model' is present in the request.
'model' is normalized to have a project number.

For example:
If the 'model' field in TranslateDocumentRequest is:
`projects/{project-id}/locations/{location-id}/models/general/nmt` then
`model` here would be normalized to
`projects/{project-number}/locations/{location-id}/models/general/nmt`.
</pre>

<code>string model = 3;</code>

@return The bytes for model.
java-translate/proto-google-cloud-translate-v3/src/main/java/com/google/cloud/translate/v3/TranslateDocumentResponse.java