export declare function Loader({ containerStyles, innerStyles, barStyles, dataStyles, dataInterpolation, initialState, }: {
    containerStyles: any;
    innerStyles: any;
    barStyles: any;
    dataStyles: any;
    dataInterpolation?: ((p: number) => string) | undefined;
    initialState?: ((active: boolean) => boolean) | undefined;
}): JSX.Element;