/**
  * Get the basename of the filesystem object.
  * For files, this will return the file name with it's extension.
  * For directories and symbolic links, this will return the name of the directory or symbolic link.
  *
  * @param string|null $suffix [optional] Suffix to omit from the basename. Null to ignore this feature.
  *
  * @return string|null Basename of the filesystem object or null on failure.
  */
 public function getBasename($suffix = null)
 {
     return FilesystemObjectHelper::getBasename($this, $suffix);
 }