import type { RefObject } from 'react';
export declare const useRequestVideoCallbackTime: ({ mediaRef, mediaType, lastSeek, onVariableFpsVideoDetected, }: {
    mediaRef: RefObject<HTMLVideoElement | HTMLAudioElement>;
    mediaType: 'video' | 'audio';
    lastSeek: React.MutableRefObject<number | null>;
    onVariableFpsVideoDetected: () => void;
}) => import("react").MutableRefObject<number | null>;