code: public org.tensorflow.framework.CollectionDef.NodeList getNodeList() {
      if (kindCase_ == 1) {
         return (org.tensorflow.framework.CollectionDef.NodeList) kind_;
      }
      return org.tensorflow.framework.CollectionDef.NodeList.getDefaultInstance();
    }
docs: <code>optional .tensorflow.CollectionDef.NodeList node_list = 1;</code>