protected function mapProperty(string $key)
	{
		if (empty($this->_options['datamap']))
		{
			return $key;
		}

		if (isset($this->_options['datamap'][$key]) && ! empty($this->_options['datamap'][$key]))
		{
			return $this->_options['datamap'][$key];
		}

		return $key;
	}