public function write($priority, $message) {
		return function($params) {
			$path = $this->_config['path'] . '/' . $this->_config['file']($params, $this->_config);
			$params['timestamp'] = date($this->_config['timestamp']);
			$message = Text::insert($this->_config['format'], $params);
			return file_put_contents($path, $message, FILE_APPEND);
		};
	}