/**
  * Validate our options
  *
  * @param CUAR_Settings $cuar_settings
  * @param array         $input
  * @param array         $validated
  *
  * @return array
  */
 public function validate_options($validated, $cuar_settings, $input)
 {
     // TODO OUTPUT ALLOWED FILE TYPES
     $cuar_settings->validate_boolean($input, $validated, CUAR_PrivateFileAddOn::$OPTION_ENABLE_ADDON);
     // TODO: Would be good to have a validate_valid_folder function in CUAR_Settings class.
     $cuar_settings->validate_always($input, $validated, CUAR_PrivateFileAddOn::$OPTION_STORAGE_PATH);
     $cuar_settings->validate_not_empty($input, $validated, CUAR_PrivateFileAddOn::$OPTION_FTP_PATH);
     return $validated;
 }