CloudflaredClient calls capnp rpc methods of SessionManager and ConfigurationManager.

CloudflaredServer provides a handler interface for a client to provide methods to handle the different types of requests that can be communicated by the stream.

RequestClientStream is a stream to provide requests to the server.

RequestServerStream is a stream to serve requests.

SessionClient calls capnp rpc methods of SessionManager.

SessionManagerServer handles streams with the SessionManager RPCs.

HandleRequestFunc wraps the proxied request from the upstream and also provides methods on the stream to handle the response back.