string? path = CombineSearchPath(NSSearchPathDirectory.NSLibraryDirectory, Path.Combine("Caches", "Documents"));
                // Special version of CombineSearchPath which creates the path if needed.
                // This isn't needed for "real" search paths which always exist, but on tvOS
                // the base path is really a subdirectory we define rather than an OS directory.
                // In order to not treat Directory.Exists(SpecialFolder.ApplicationData) differently
                // on tvOS, guarantee that it exists by creating it here
                if (!Directory.Exists (path))
                    Directory.CreateDirectory (path);
                path = Path.Combine(path, subdirectory);