declare const constants: {
  O_RDWR: number
  O_RDONLY: number
  O_WRONLY: number
  O_CREAT: number
  O_TRUNC: number
  O_APPEND: number

  F_OK: number
  R_OK: number
  W_OK: number
  X_OK: number

  S_IFMT: number
  S_IFREG: number
  S_IFDIR: number
  S_IFCHR: number
  S_IFLNK: number
  S_IFBLK: number
  S_IFIFO: number
  S_IFSOCK: number

  S_IRUSR: number
  S_IWUSR: number
  S_IXUSR: number
  S_IRGRP: number
  S_IWGRP: number
  S_IXGRP: number
  S_IROTH: number
  S_IWOTH: number
  S_IXOTH: number

  UV_DIRENT_UNKNOWN: number
  UV_DIRENT_FILE: number
  UV_DIRENT_DIR: number
  UV_DIRENT_LINK: number
  UV_DIRENT_FIFO: number
  UV_DIRENT_SOCKET: number
  UV_DIRENT_CHAR: number
  UV_DIRENT_BLOCK: number

  COPYFILE_EXCL: number
  COPYFILE_FICLONE: number
  COPYFILE_FICLONE_FORCE: number
  UV_FS_SYMLINK_DIR: number
  UV_FS_SYMLINK_JUNCTION: number
}

export = constants