old_contents: import React, {Component, PropTypes} from 'react'
  
  class FilterWhere extends Component {
  
  }
  
  class FilterOf extends Component {
  
  }
  
  export default class Filter extends Component {
  	static propTypes = {
  		filter: PropTypes.object.isRequired,
  	}
  
  	render() {
  		return JSON.stringify(this.props.filter, null, 2)
  	}
  }
  
new_contents: import React, {Component, PropTypes} from 'react'
  
  class FilterWhere extends Component {
  
  }
  
  class FilterOf extends Component {
  
  }
  
  export default class Filter extends Component {
  	static propTypes = {
  		filter: PropTypes.object,
  	}
  
  	render() {
  		return <div>{JSON.stringify(this.props.filter, null, 2)}</div>
  	}
  }
  
subject: fix expression--filter