sig
type t = [ `Buy | `Sell | `Sell_short ]
val of_string : string -> t
val to_string : t -> string
val tws_of_t : t -> Tws_prot.raw_tws
val t_of_tws : Tws_prot.raw_tws -> t
val val_type : t Tws_prot.Val_type.t
val t_of_sexp : Sexplib.Sexp.t -> Order_action.t
val __t_of_sexp__ : Sexplib.Sexp.t -> Order_action.t
val sexp_of_t : Order_action.t -> Sexplib.Sexp.t
end