/**
 * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
export default class {
    private _isReferenceBeingHeld;
    constructor(value: unknown);
    isLeaking(): Promise<boolean>;
    private _runGarbageCollector;
}