declare class FileUtils {
    static compressFile: (file: File, compressOption?: {
        maxSizeMB: number;
        maxWidthOrHeight: number;
        useWebworker: boolean;
    }) => Promise<File>;
    static readFileAsDataURL: (file?: File | null) => Promise<string | null>;
    static readFilesAsDataURL: (files?: FileList | null) => Promise<string[] | null>;
}
export default FileUtils;