public static void Copy(this IFileSystemOperator fileSystemOperator, string sourcePath, string destinationPath, bool overwrite = true)
 {
     fileSystemOperator.FileOrDirectorySwitch(sourcePath,
                                              () => fileSystemOperator.CopyFile(sourcePath, destinationPath, overwrite),
                                              () => fileSystemOperator.CopyDirectory(sourcePath, destinationPath));
 }