export interface IAsyncStateMap<T> {
    resolve: (value: T | PromiseLike<T>) => void;
    reject: (error?: Error) => void;
    listener?: (value: T | Error) => void;
    done: boolean;
}
export declare class AsyncState {
    static acquire<T>(listener?: (value: T) => void): Promise<T>;
    static resolve<T>(pending?: Promise<T>, value?: T): void;
    static reject<T>(pending?: Promise<T>, reason?: Error): void;
    static isReleased<T>(pending: Promise<T> | undefined): boolean;
    static has<T>(pending: Promise<T> | undefined): boolean;
}
//# sourceMappingURL=AsyncState.d.ts.map