Response.Usage
module Cost_details : sig ... end
type t = {
prompt_tokens : int;
total_tokens : int;
cost : float option;
is_byok : bool option;
cost_details : Cost_details.t option;
}
include Sexplib0.Sexpable.S with type t := t
val t_of_sexp : Sexplib0__.Sexp.t -> t
val sexp_of_t : t -> Sexplib0__.Sexp.t