export type MediaMarksState = {
    lastTime: number;
    markIn: number | null;
    markOut: number | null;
};
export type MediaSegment = {
    start: number;
    end: number;
};
export type MediaMarks = {
    getState: () => MediaMarksState;
    updateTime: (time: number) => void;
    markIn: () => void;
    markOut: () => void;
    setSegment: (start: number | null, end: number | null) => void;
    clear: () => void;
    hasValidMarks: () => boolean;
    getSegment: () => MediaSegment | null;
};
export declare const createMediaMarks: () => MediaMarks;