models/classes/runner/communicator/SyncChannel.php
public function process(QtiRunnerServiceContext $context, array $data = [])
    {
        return $this->getServiceManager()->get(SynchronisationService::SERVICE_ID)->process($data, $context);
    }
public function process(QtiRunnerServiceContext $context, array $data = [])
    {
        return $this->getServiceManager()->get(SynchronisationService::SERVICE_ID)->process($data, $context);
    }
Forward the data processing to the SynchronisationService

@param QtiRunnerServiceContext $context
@param array $data
@return string