/**
	 * Model the first key
	 *
	 * @param   string   $key  The first key to model
	 *
	 * @return  string
	 * @since 3.2.0
	 */
	protected function firstKey(string $key): string
	{
		return $key;
	}

	/**
	 * Model the second key
	 *
	 * @param   string   $key  The second key to model
	 *
	 * @return  string
	 * @since 3.2.0
	 */
	protected function secondKey(string $key): string
	{
		return $key;
	}