(* * Copyright (c) 2016 - present Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. *) open! Utils (** Object representing the status of the join operation *) type mode = | Pre | Post val get_footprint : unit -> bool val set_footprint : bool -> unit