type t = {engine : string option;max_uses : int option;max_content_tokens : int option;allowed_domains : string list option;blocked_domains : string list option;
}include Sexplib0.Sexpable.S with type t := t
val t_of_sexp : Sexplib0__.Sexp.t -> tval sexp_of_t : t -> Sexplib0__.Sexp.t