Type Alias SessionAdmissionSink 

pub type SessionAdmissionSink = Sender<(SessionAdmissionRequest, SessionAdmissionReply)>;

How the SessionManager reaches whoever decides admission.

Bounded, and deliberately so: an unanswered request is a refused Session rather than an unbounded queue of peers waiting on a session server that has stopped keeping up.

Aliased Type

pub struct SessionAdmissionSink(/* private fields */);