Hvsock_lwt_unix.Preemptive_detach
include Hvsock_lwt.S.FN
val create : ( 'request -> 'response ) -> ( 'request, 'response ) t
val destroy : ( 'request, 'response ) t -> unit
val fn : ( 'request, 'response ) t -> 'request -> 'response Lwt.t
Apply the function