// just for develop export default { read, write, dir, stat, find, remove, copy } function read(filename: string): string {return ''} function write(filename: string, data: any): void {} function dir(filename: string): Array {return null} function stat(filename: string): FileInfo {return null} function find(filename: string): string {return ''} function remove(filename: string): void {} function copy(from: string, to: string): void {} interface FileInfo { name: string fullName: string isDir: boolean size: number modTime: number }