private void ensureAttributesIsMutable() {
      if (!((bitField0_ & 0x00000008) != 0)) {
        attributes_ =
            new java.util.ArrayList<
                com.google.cloud.visionai.v1.OperatorDefinition.AttributeDefinition>(attributes_);
        bitField0_ |= 0x00000008;
      }
    }
<pre>
Declares output arguments.
</pre>

<code>
repeated .google.cloud.visionai.v1.OperatorDefinition.ArgumentDefinition output_args = 3;
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/OperatorDefinition.java