include sig ... end
val query_of_sexp : Sexplib.Sexp.t ‑> query
include sig ... end
val sexp_of_response : response ‑> Sexplib.Sexp.t
include sig ... end
val sexp_of_error : error ‑> Sexplib.Sexp.t
val rpc : (query, response, error) Async.Rpc.Pipe_rpc.t
val implementation : Invocation.t ‑> query ‑> (response Async.Pipe.Reader.t, error) Core.Result.t Async.Deferred.t