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