code: function(event) {
  			if(event && event.type === 'Changed' && Array.isArray(event.modified)) {
  				event.modified.forEach(function(file) {
  					if(typeof file === 'string') {
  						this.cache.remove(this._getKey(file));
  					}
  				}.bind(this));
  			}
  		}
docs: Callback from the FileClient
  @param {Object} event a <tt>Changed</tt> event