type t val create : ?token:(string option) -> string -> Vyconf_connect.Vyconf_pbt.request_output_format -> Vyconf_connect.Vyconf_pbt.request_config_format -> t Lwt.t val get_token : t -> (string, string) result Lwt.t val shutdown : t -> t Lwt.t val prompt : t -> Vyconf_connect.Vyconf_pbt.response Lwt.t val setup_session : ?on_behalf_of:(int option) -> t -> string -> (t, string) result Lwt.t val teardown_session : ?on_behalf_of:(int option) -> t -> (string, string) result Lwt.t val exists : t -> string list -> (string, string) result Lwt.t val get_value : t -> string list -> (string, string) result Lwt.t val get_values : t -> string list -> (string, string) result Lwt.t val list_children : t -> string list -> (string, string) result Lwt.t val show_config : t -> string list -> (string, string) result Lwt.t val validate : t -> string list -> (string, string) result Lwt.t val set : t -> string list -> (string, string) result Lwt.t val delete : t -> string list -> (string, string) result Lwt.t val commit : t -> (string, string) result Lwt.t val reload_reftree : ?on_behalf_of:(int option) -> t -> (string, string) result Lwt.t