add note aobut hook helpers...

src/api_hooks_helpers.py

@@ -1,3 +1,5 @@
+# TODO(Ed): Do we need these in a speparate module?
+
 def _get_app_attr(app: Any, name: str, default: Any = None) -> Any:
  """Retrieves an attribute from the App or its Controller."""
  if hasattr(app, name):
@@ -21,4 +23,5 @@ def _set_app_attr(app: Any, name: str, value: Any) -> None:
  elif hasattr(app, 'controller'):
   setattr(app.controller, name, value)
  else:
-  setattr(app, name, value)
+  setattr(app, name, value)
+