You can search for identifiers within the package.
in-package search v0.2.0
type !'a t =
| Cons of 'a * 'a t Lazy.t
| Nil
val of_stream : 'a Stream.t -> 'a t
val of_function : (unit -> 'a option) -> 'a t
val of_string : string -> char t
val of_channel : in_channel -> char t