public function addResolutionRequestDenialCancellations(\AgentSIB\Diadoc\Api\Proto\Events\ResolutionRequestDenialCancellationAttachment $value)
    {
        if ($this->ResolutionRequestDenialCancellations === null) {
            $this->ResolutionRequestDenialCancellations = new \Protobuf\MessageCollection();
        }

        $this->ResolutionRequestDenialCancellations->add($value);
    }