Manager::getSessionById

static function getSessionById(string $sessionId): ?Session
{
	if (self::$activeSession && self::$activeSession->getId() === $sessionId)
	{
		return self::$activeSession;
	}

	$session = static::getList(['=ID' => $sessionId]);
	if ($session && $session->isActive())
	{
		self::setActiveSession($session);
	}

	return $session;
}