export declare const durationConverter: {
    fromAttribute: (value: string | null) => number | null;
    toAttribute: (value: number | null) => string | null;
};
export declare const trimDurationConverter: {
    fromAttribute: (value: string | null) => number | null;
    toAttribute: (value: number | null) => string | null;
};
export declare const imageDurationConverter: {
    fromAttribute: (value: string | null) => number | null;
    toAttribute: (value: number | null) => string | null;
};
export declare const sourceDurationConverter: {
    fromAttribute: (value: string | null) => number | null;
    toAttribute: (value: number | null) => string | null;
};
