Wp.ProofSession
val pp_script_for : Stdlib.Format.formatter -> Wpo.t -> unit
val exists : Wpo.t -> bool
val save : stdout:bool -> Wpo.t -> Frama_c_kernel.Json.t -> unit
val load : Wpo.t -> Frama_c_kernel.Json.t
val remove : Wpo.t -> unit
val filename : force:bool -> Wpo.t -> string
val mark : Wpo.t -> unit