export declare class TimeoutError extends Error {
    readonly ms: number;
    constructor(ms: number, label?: string);
}
export declare function isTimeoutLike(err: unknown): boolean;
export declare function withAbortTimeout<T>(ms: number, op: (signal: AbortSignal) => Promise<T>): Promise<T>;
export declare function anySignal(signals: Array<AbortSignal | undefined>): AbortSignal | undefined;
export declare function withDeadline<T>(ms: number, label: string, parent: AbortSignal | undefined, op: (signal: AbortSignal) => Promise<T>): Promise<T>;
export declare function withRaceTimeout<T>(p: Promise<T>, ms: number, label?: string): Promise<T>;