Tezos_baking_alpha.Abstract_context_indextype t = {sync_fun : unit -> unit Lwt.t;checkout_fun : Tezos_base.TzPervasives.Context_hash.t ->
Tezos_protocol_environment.Context.t option Lwt.t;finalize_fun : unit -> unit Lwt.t;}val abstract : Tezos_context_ops.Context_ops.index -> t