// EvtNATDeviceTypeChanged is an event struct to be emitted when the type of the NAT device changes for a Transport Protocol.//// Note: This event is meaningful ONLY if the AutoNAT Reachability is Private.// Consumers of this event should ALSO consume the `EvtLocalReachabilityChanged` event and interpret// this event ONLY if the Reachability on the `EvtLocalReachabilityChanged` is Private.typeEvtNATDeviceTypeChangedstruct{// TransportProtocol is the Transport Protocol for which the NAT Device Type has been determined.TransportProtocolnetwork.NATTransportProtocol// NatDeviceType indicates the type of the NAT Device for the Transport Protocol.// Currently, it can be either a `Cone NAT` or a `Symmetric NAT`. Please see the detailed documentation// on `network.NATDeviceType` enumerations for a better understanding of what these types mean and// how they impact Connectivity and Hole Punching.NatDeviceTypenetwork.NATDeviceType}