A suspended fiber with its context.
module Trace = Eio.Private.Tracetype 'a t = {fiber : Eio.Private.Fiber_context.t;k : ('a, [ `Exit_scheduler ]) Effect.Deep.continuation;
}val tid : 'a t -> Eio.Private.Trace.idval continue : 'a t -> 'a -> [ `Exit_scheduler ]val discontinue : 'a t -> exn -> [ `Exit_scheduler ]