public static bool Exists(this IFileSystemOperator fileSystemOperator, string path)
        {
            var output = fileSystemOperator.FileOrDirectorySwitch(path,
                                                                  () => true,                                      // If the path is a file, then it exists.
                                                                  () => fileSystemOperator.ExistsDirectory(path)); // Else the path is either a directory, or does not exist.

            return(output);
        }
        public static bool IsExistingDirectory(this IFileSystemOperator fileSystemOperator, string path)
        {
            var output = fileSystemOperator.ExistsDirectory(path);

            return(output);
        }