Solver.Registry
type t = Sidekick_smt_solver.Make(Solver_arg).Registry.t
type 'a key = 'a Sidekick_smt_solver.Make(Solver_arg).Registry.key
val create_key : unit -> 'a key
val create : unit -> t
val get : t -> 'a key -> 'a option
val set : t -> 'a key -> 'a -> unit