export interface LoopOptions {
    tickFn: () => Promise<void> | void;
    intervalMs: number;
    shouldStop: () => boolean;
    sleep?: (ms: number) => Promise<void>;
    onTickError?: (error: unknown) => void;
    sliceMs?: number;
}
export declare function realSleep(ms: number): Promise<void>;
export declare function runLoop(opts: LoopOptions): Promise<void>;