val implement_multi : ?log_not_previously_seen_version:(name:string ‑> int ‑> unit) ‑> ('connection_state ‑> version:int ‑> query ‑> (state * update Async_kernel.Pipe.Reader.t, error) Core_kernel.Result.t Async_kernel.Deferred.t) ‑> 'connection_state Rpc.Implementation.t list
implement multiple versions at once
val versions : unit ‑> Core_kernel.Int.Set.t
All versions supported by implement_multi
.
(useful for computing which old versions may be pruned)