Using functions such as BaseObject::getCommentByKey() plugins can attach meta data to objects. This meta data is currently only serialized when taking viewer snapshots. "Plugin-DeserializeScreenshotMetadata" allows deserializing this metadata from a viewer snapshot. (In the future serialization and deserialization of meta data may occur in other contexts as well.)

Whenever meta gets deserialized the slots in this interface will get triggered. Please refer to the documentation of the individual slots to find out which specific signal suits your needs.