pub fn failingDirCreateDirPathOpen(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, permissions: Dir.Permissions, options: Dir.OpenOptions) Dir.CreateDirPathOpenError!Dir
pub fn failingDirCreateDirPathOpen(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, permissions: Dir.Permissions, options: Dir.OpenOptions) Dir.CreateDirPathOpenError!Dir { _ = userdata; _ = dir; _ = sub_path; _ = permissions; _ = options; return error.NoSpaceLeft; }