/// <reference types="selenium-webdriver" />
import { StepDefinitions } from 'cucumber';
import * as webdriver from 'selenium-webdriver';
/**
 * Monkey-patches Cucumber.js Given/When/Then step generators to ensure that any step definition they create
 * is executed within WebDriver's ControlFlow and therefore synchronised with it
 *
 * @param cucumber
 * @param controlFlow
 */
export declare function synchronise(cucumber: StepDefinitions, controlFlow: webdriver.promise.ControlFlow): void;