/// <reference path="../../../third_party/typings/es6-promise/es6-promise.d.ts" />
export declare function wrap<T>(wrapper: Wrapper, f: () => Promise<T>): Promise<T>;
export declare class Wrapper {
    private destructor_;
    private counter_;
    private fulfillDestroyed_;
    private rejectDestroyed_;
    private onceDestroyed_;
    constructor(destructor_: () => void);
    discard: () => void;
    onceDestroyed: () => Promise<void>;
    before: () => void;
    after: () => void;
}