Module For_testing.Unsafe_cheap_option
include Base.Sexpable.S1 with type 'a t := 'a t
val t_of_sexp : (Sexplib0.Sexp.t -> 'a) -> Sexplib0.Sexp.t -> 'a t
val sexp_of_t : ('a -> Sexplib0.Sexp.t) -> 'a t -> Sexplib0.Sexp.t
val none : _ t
val some : 'a -> 'a t
val is_none : _ t -> bool
val is_some : _ t -> bool
val value_exn : 'a t -> 'a
val value_unsafe : 'a t -> 'a
val to_option : 'a t -> 'a Base.Option.t
val of_option : 'a Base.Option.t -> 'a t