val implement_multi : ?log_not_previously_seen_version:(name:string ‑> int ‑> unit) ‑> ('state ‑> version:int ‑> query ‑> response Async_kernel.Deferred.t) ‑> 'state Async_rpc_kernel.Rpc.Implementation.t list
implement multiple versions at once
val versions : unit ‑> Core_kernel.Int.Set.t
All versions implemented by implement_multi
.
(useful for computing which old versions may be pruned)