SmsManager::getRegisteredSenderList

static function getRegisteredSenderList(): array
{
	$senderList = [];
	foreach (static::getSenders() as $sender)
	{
		if (
			$sender instanceof BaseConfigurable
			&& $sender->isRegistered()
		)
		{
			$senderList[] = $sender;
		}
	}

	return $senderList;
}