val operation_hashes : Tezos_rpc.RPC_context.simple -> ?chain:chain -> ?block:block -> unit -> (Tezos_crypto.Operation_hash.t list list, Tezos_error_monad.Error_monad.error list) result Lwt.t
val operation_hashes_in_pass : Tezos_rpc.RPC_context.simple -> ?chain:chain -> ?block:block -> int -> (Tezos_crypto.Operation_hash.t list, Tezos_error_monad.Error_monad.error list) result Lwt.t