-void Module::OnSyncChannelMetaData(Channel*, Module*, void*, const std::string&, bool) { }
-void Module::OnSyncUserMetaData(User*, Module*, void*, const std::string&, bool) { }
-void Module::OnSyncOtherMetaData(Module*, void*, bool) { }
-void Module::OnDecodeMetaData(int, void*, const std::string&, const std::string&) { }
-void Module::ProtoSendMetaData(void*, TargetTypeFlags, void*, const std::string&, const std::string&) { }
+void Module::OnDecodeMetaData(Extensible*, const std::string&, const std::string&) { }
+void Module::ProtoSendMetaData(void*, Extensible*, const std::string&, const std::string&) { }
+std::string Module::ProtoTranslate(Extensible*) { return "?"; }