should::getCode

static function getCode($prefix = false)
{
	$class = explode('\', (string) get_called_class());
	if(empty($class) && empty($class[count($class) - 1]))
	{
		throw new BitrixMainSystemException('Cannot identify sub-entity code');
	}

	return ($prefix ? static::SE_PREFIX : '').ToUpper($class[count($class) - 1]);
}