Still need to check the existence of __annotations__.

Author: yilei

sdks/python/apache_beam/typehints/native_type_compatibility.py

@@ -164,6 +164,7 @@ def _match_is_exactly_sequence(user_type):
 def match_is_named_tuple(user_type):
   return (
       _safe_issubclass(user_type, typing.Tuple) and
+      hasattr(user_type, '__annotations__') and
       hasattr(user_type, '_fields'))