PushService::getRecipients

protected function getRecipients(Chat $chat): array
{
	$users = $chat->getRelations()->getUserIds();

		foreach ($chat->getRelations()->getUsers() as $user)
		{
			if ($user->getExternalAuthId() === 'imconnector')
			{
				unset($users[$user->getId()]);
			}
		}

		return $users;
}