Session Serializers
If you do not specify any serializer, it will use one with an internal optimized format.
serializer = autoSerializerOf()
}
Custom serializers
The Sessions API provides a interface, that looks like this:
cookie<MySession>("NAME") {
So for example you can create a JSON session serializer using Gson:
cookie<MySession>("NAME") {
serializer = GsonSessionSerializer(MySession::class.java)