/**
* Method for prepare request to parent node or doing another actions. Can be redefined in child classes,
* but must return string with unique key of request. By default return the result of \Pipeline::sendRequest() call, and it is good practice.
* In this method defines which commands will requested for parent node. By default client request just resend.
* @param array $request Client request
* @return string
*/
protected function prepareRequest(array $request)
{
$this->logger->debug('Prepare request to parent node', ['key' => md5($request['key'])]);
return $this->node->sendRequest(json_encode($request));
}
