UserRegistry::isGroupAdmin

public function isGroupAdmin(int $groupId): bool
{
	if (!Loader::includeModule('socialnetwork'))
	{
		return false;
	}

	$userGroups = $this->getUserGroups();

	if (!array_key_exists($groupId, $userGroups))
	{
		return false;
	}

	return in_array($userGroups[$groupId], [UserToGroupTable::ROLE_OWNER, UserToGroupTable::ROLE_MODERATOR]);
}