How to use the react-chartjs-2.Pie function in react-chartjs-2

render: function render() {
    return _react2.default.createElement(
      'div',
      null,
      _react2.default.createElement(
        'h2',
        null,
        'Legend Handlers Example'
      ),
      _react2.default.createElement(
        'p',
        null,
        'Hover over label and click'
      ),
      _react2.default.createElement(_reactChartjs.Pie, { data: data, legend: this.state.legend })
    );
  }
});