/**
 * The following code is modified based on
 * https://github.com/puppeteer/puppeteer/blob/main/packages/puppeteer-core/src/util/Mutex.ts
 *
 * Copyright 2024 Google Inc.
 * SPDX-License-Identifier: Apache-2.0
 * https://github.com/puppeteer/puppeteer/blob/main/LICENSE
 */
export declare class Mutex {
    #private;
    static Guard: {
        new (mutex: Mutex, onRelease?: () => void): {
            "__#private@#mutex": Mutex;
            "__#private@#onRelease"?: () => void;
            [Symbol.dispose](): void;
        };
    };
    acquire(onRelease?: () => void): Promise<InstanceType<typeof Mutex.Guard>>;
    release(): void;
}
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