Get Server object from Client on the server side

[peter-dobsa]

I'm unsure how can I "unwrap" the underlying server object when it's returned from the client as part of an API call. This is something that is easily achievable on the C++ side via CapabilityServerSet, but I can't seem to find an alternative in the python wrapper.

Example:

interface MyInterface {
  interface MyObject {}
  create @0 () -> (obj :MyObject);
  doSomething @1 (obj :MyObject) -> ();
}

class MyObjectImpl(myinterface_capnp.MyInterface.MyObject.Server):
    # server-side implementetion of MyObject

class MyInterfaceImpl(myinterface_capnp.MyInterface.Server):
    async def create(self, **kwargs):
        return MyObjectIml()

    async def doSomething(self, obj, **kwargs):
        # obj is of type capnp.lib.capnp._DynamicCapabilityClient
        # I'd like to access the corresponding MyObjectImpl object