sig
type t =
[ `List_of_query_descriptions of (string * string) list
| `List_of_target_ids of string list
| `List_of_targets of Ketrew_target.t list
| `Ok
| `Query_result of string ]
val to_json : t -> Yojson.Safe.json
val of_json_exn : Yojson.Safe.json -> t
val serialize : t -> string
val deserialize_exn : string -> t
end