declare const _default: {
    fileTypesInputAcceptStr: (fileTypes: string[]) => string;
    fileTypesSeparatorStr: (fileTypes: string[], separator?: string) => string;
    fileSizeToUnit: (size: number) => string;
    getFileExtension: (fileName: string) => string;
};
export default _default;
//# sourceMappingURL=fileUtil.d.ts.map