code: function done( error, data ) {
  		if ( error ) {
  			return clbk( error );
  		}
  		data = transform( data );
  		clbk( null, data );
  	}
docs: FUNCTION: done( error, data )
  Callback invoked upon completing a request.
  
  @private
  @param {Error|Null} error - error object
  @param {String} data - response data
  @returns {Void}