import { ComponentHarness, HarnessQuery } from '@angular/cdk/testing';
import { WebdriverIOHarnessEnvironment } from './WebdriverIOHarnessEnvironment.js';
/**
 * Searches for all instances of the component corresponding to the given harness type under the
 * `HarnessLoader`'s root element, and returns a list of `ComponentHarness` for each instance.
 * @param query A query for a harness to create
 * @return A list of instances of the given harness type
 */
export declare const getAllHarnesses: <T extends ComponentHarness>(query: HarnessQuery<T>) => Promise<T[]>;
/**
 * Searches for an instance of the component corresponding to the given harness type or host element
 * under the `HarnessLoader`'s root element, and returns a `ComponentHarness` for that instance. If
 * multiple matching components are found, a harness for the first one is returned. If no matching
 * component is found, an error is thrown.
 * @param query A query for a harness to create
 * @param element A raw host element for a harness to create
 * @return An instance of the given harness type
 * @throws If a matching component instance can't be found
 */
export declare const getHarness: <T extends ComponentHarness>(query: HarnessQuery<T>, element?: WebdriverIO.Element) => Promise<T>;
/**
 * Returns a base harness environment instance.
 * @return An HarnessLoader instance for the current HTML document, rooted at the document's root element
 */
export declare const createHarnessEnvironment: (rootElement?: WebdriverIO.Element) => Promise<WebdriverIOHarnessEnvironment>;
/**
 * Returns a promise that resolves when the application is "stable".
 * The promise might be rejected due to timeouts, or async tasks in the client
 * app that never finish (timers, etc).
 */
export declare const waitForAngular: () => Promise<void>;