/// <reference types="node" />
interface FileSystem {
    isFile(filePath: string, cb: (err: any, state?: boolean) => any): void;
    readFile(filePath: string, callback: (err: any, data?: Buffer) => any): void;
    isFileSync(filePath: string): boolean;
    readFileSync(filePath: string): Buffer;
    realpathSync(filePath: string): string;
    isDirectory(dirPath: string, cb: (err: any, state?: boolean) => any): void;
    isDirectorySync(dirPath: string): boolean;
}
export { FileSystem };