export interface ILock {
    release(): void;
}
export declare class Lock implements ILock {
    private _promise?;
    private _resolve?;
    tryTake(): boolean;
    take(): Promise<void>;
    get isTaken(): boolean;
    release(): void;
    released(): Promise<void> | undefined;
}
export declare class MultiLock implements ILock {
    readonly locks: Lock[];
    constructor(locks: Lock[]);
    release(): void;
}
export declare function tests(): {
    "taking a lock twice returns false": (assert: any) => void;
    "can take a released lock again": (assert: any) => void;
    "2 waiting for lock, only first one gets it": (assert: any) => Promise<void>;
    "await non-taken lock": (assert: any) => Promise<void>;
};