You can search for identifiers within the package.
in-package search v0.2.0
module String_set : sig ... end
module Node_ID : sig ... end
type busy_with_equal =
| Not_busy
| Structural_equal
| Referential_equal
val busy_with_equal : busy_with_equal Stdlib.ref
val equal_stmt_field_s : ('a -> 'b -> bool) -> 'a -> 'b -> bool
val equal_stmt_field_s_id : Node_ID.t -> Node_ID.t -> Ppx_deriving_runtime.bool
val with_structural_equal : ('a -> 'b -> 'c) -> 'a -> 'b -> 'c
val with_referential_equal : ('a -> 'b -> 'c) -> 'a -> 'b -> 'c