How to use the voila.execute.OutputWidget function in voila

def handle_comm_msg(self, outs, msg, cell_index):
        super(VoilaExecutePreprocessor, self).handle_comm_msg(outs, msg, cell_index)
        self.log.debug('comm msg: %r', msg)
        if msg['msg_type'] == 'comm_open' and msg['content'].get('target_name') == 'jupyter.widget':
            content = msg['content']
            data = content['data']
            state = data['state']
            comm_id = msg['content']['comm_id']
            if state['_model_module'] == '@jupyter-widgets/output' and state['_model_name'] == 'OutputModel':
                self.output_objects[comm_id] = OutputWidget(comm_id, state, self.kc, self)
        elif msg['msg_type'] == 'comm_msg':
            content = msg['content']
            data = content['data']
            if 'state' in data:
                state = data['state']
                comm_id = msg['content']['comm_id']
                if comm_id in self.output_objects:
                    self.output_objects[comm_id].set_state(state)