public function chmod($type) {
		
		if(null !== $type && false === ('-' . intval($type) == '-' . $type)) {
			return trigger_error(sprintf('Argument 1 passed to %s() must be of the type integer, "%s" given', __METHOD__, gettype($type)), E_USER_ERROR);
		}

		if(false !== $this -> file -> getExists()) {
			return chmod($this -> file -> getBasepath(), $type);
		}

		return false;
	}