interface FileSystem {
    pathSeparator: string;
    pathExists(filename: string): boolean;
    isFileInDirectory(filename: string, directory: string): boolean;
    readFileAsUtf8(filename: string): string;
    join(...paths: string[]): string;
    resolvePath(path: string): string;
    listPaths(dir: string): string[];
    isDirectory(dir: string): boolean;
}
export { FileSystem };