val dispatch_multi : Connection_with_menu.t ‑> query ‑> (state * update Core_kernel.Or_error.t Async_kernel.Pipe.Reader.t * Rpc.State_rpc.Metadata.t, error) Core_kernel.Result.t Core_kernel.Or_error.t Async_kernel.Deferred.t
Multi-version dispatch
The return type varies slightly from Rpc.State_rpc.dispatch
to make it clear
that conversion of each individual element in the returned pipe may fail.
val versions : unit ‑> Core_kernel.Int.Set.t
All versions supported by dispatch_multi
(useful for computing which old
versions may be pruned).