`TWSServerConnection`
	ro	HandshakeResponseSent
	ro	ExtraHeaders
	ro	ServerTransport

`TWSConnection`
pt	ro	Owner
		AutoDisconnect
	ro	CloseState
	ro	ConnectionID
		FreeUserData
	ro	HandshakeRequest
	ro	HandshakeCompleted
	ro	Options
		OutgoingFrameMask
	ro	PeerIP
	ro	PeerPort
	ro	Transport
		UserData
		WebSocketVersion