This is similar to CCMixtbl, but the injection is directly used as a key.
type 'a sequence
= ('a ‑> unit) ‑> unit
type 'a gen
= unit ‑> 'a option
module Key : sig ... end
type pair
=
|
Pair : 'a Key.t * 'a ‑> pair
module Tbl : sig ... end
Key
module Map : sig ... end