You can search for identifiers within the package.
in-package search v0.2.0
type t = int Atomic.t
type cfg = unit
val init : ?cfg:'a -> unit -> int Atomic.t
type _ op =
| Incr : unit op
| Decr : unit op
| Get : int op
type wrapped_op =
| Mk : 'a op * 'a Picos.Computation.t -> wrapped_op
val run : t -> wrapped_op array -> unit