Builder.JobStatus
val has_id : t -> bool
val id_get : t -> string
val id_set : t -> string -> unit
val has_description : t -> bool
val description_get : t -> string
val description_set : t -> string -> unit
val can_cancel_get : t -> bool
val can_cancel_set : t -> bool -> unit
val can_rebuild_get : t -> bool
val can_rebuild_set : t -> bool -> unit
val init_root : ?message_size:int -> unit -> t