@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>
Model to use for the feature.
Supported values: "builtin/stable" (the default if unset) and
"builtin/latest". `DOCUMENT_TEXT_DETECTION` and `TEXT_DETECTION` also
support "builtin/weekly" for the bleeding edge release updated weekly.
</pre>

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

@return The bytes for model.
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/Feature.java