text: 'use strict';
  
  import React, {PropTypes} from 'React';
  
  const SomeMixin = {
    componentDidMount() {
      console.log('did mount');
    },
  };
  
  export default React.createClass({
    mixins: [SomeMixin],
    propTypes: {
      foo: PropTypes.string,
    },
    render: function() {
      return <div />;
    },
  });
  