return numbers of hydrated and lazy objects from hydrate_lazy_objects

Summary: `hydrate_lazy_objects` used to return numbers of hydrated and lazy objects in 3.10, which could help diagnose issues. This diff makes it behave the same as 3.10.

Reviewed By: Kronuz

Differential Revision: D59477773

fbshipit-source-id: f5ef89aad50fee139e2688d77ebe1d9d9458cc04

Lib/importlib/__init__.py

@@ -71,7 +71,7 @@ def is_lazy_import(dictionary, key):
 
 
 def hydrate_lazy_objects():
-    _imp.hydrate_lazy_objects()
+    return _imp.hydrate_lazy_objects()
 
 
 def set_lazy_imports(enable = True, /, excluding = None, eager = None):