CBPTaskService::cleanCountersCache

static function cleanCountersCache($users)
{
	$users = (array) $users;
	$users = array_unique($users);
	$cache = BitrixMainApplication::getInstance()->getManagedCache();
	foreach ($users as $userId)
	{
		$cache->clean(self::COUNTERS_CACHE_TAG_PREFIX.$userId);
	}
}