export default function useDragAndDrop(): {
    dragOver: boolean;
    setDragOver: import("react").Dispatch<import("react").SetStateAction<boolean>>;
    onDragOver: (e: React.SyntheticEvent) => void;
    onDragLeave: () => void;
    fileDropError: string | null;
    setFileDropError: import("react").Dispatch<import("react").SetStateAction<string | null>>;
};