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

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