models/classes/runner/StorageManager.php
public function del($userId, $callId)
    {
        $key = $this->getCacheKey($userId, $callId);
        $this->putInCache($key, $userId, $callId, null, self::STATE_PENDING_DELETE);
        return true;
    }
public function del($userId, $callId)
    {
        $key = $this->getCacheKey($userId, $callId);
        $this->putInCache($key, $userId, $callId, null, self::STATE_PENDING_DELETE);
        return true;
    }
Marks the the dataset to be removed from the storage.

@param string $userId
@param string $callId
@return boolean