/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import type * as playwright from '../../..';
import type { Tab } from './tab';
export declare function waitForCompletion<R>(tab: Tab, callback: () => Promise<R>): Promise<R>;
export declare function eventWaiter<T>(page: playwright.Page, event: string, timeout: number): {
    promise: Promise<T | undefined>;
    abort: () => void;
};
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