text: const PureRenderMixin = require('react-addons-pure-render-mixin');
  const React = require('react');
  
  class PureComponent extends React.Component {
    constructor(props) {
      super(props);
      this.shouldComponentUpdate = PureRenderMixin.shouldComponentUpdate.bind(this);
    }
  }
  
  module.exports = PureComponent;
  