1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/typing.py b/Lib/typing.py
index ab33439..3ee9679 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -230,6 +230,9 @@ def _type_repr(obj):
     typically enough to uniquely identify a type.  For everything
     else, we fall back on repr(obj).
     """
+    # When changing this function, don't forget about
+    # `_collections_abc._type_repr`, which does the same thing
+    # and must be consistent with this one.
     if isinstance(obj, type):
         if obj.__module__ == 'builtins':
             return obj.__qualname__