docs: function onResponse( response ) {
  		if ( response.statusCode !== 200 ) {
  			err = {
  				'status': response.statusCode,
  				'message': ''
  			};
  		}
  		debug( 'Received a response from query endpoint.' );
  		debug( 'Response status: %s.', response.statusCode );
  		debug( 'Response headers: %s', JSON.stringify( response.headers ) );
  
  		response.setEncoding( 'utf8' );
  		response.on( 'data', onData );
  		response.on( 'end', onEnd );
  	}