ReadService::sendPush

public function sendPush(int $chatId, array $userIds, int $counter, float $time): void
{
	if (!Loader::includeModule('pull'))
	{
		return;
	}
	BitrixPullEvent::add($userIds, [
		'module_id' => 'im',
		'command' => 'chatCounterChange',
		'params' => [
			'chatId' => $chatId,
			'counter' => $counter,
			'time' => $time
		],
		'extra' => BitrixImCommon::getPullExtra()
	]);
}