suppress errors in fbcode/vision - batch 2

Differential Revision: D35590813

fbshipit-source-id: 0f35d7193f839a41f3cac18bf20236b815368f19

Author: Pyre Bot Jr

pytorch3d/implicitron/dataset/types.py

@@ -277,6 +277,8 @@ def _unwrap_type(tp):
 
 def _get_dataclass_field_default(field: Field) -> Any:
     if field.default_factory is not MISSING:
+        # pyre-fixme[29]: `Union[dataclasses._MISSING_TYPE,
+        #  dataclasses._DefaultFactory[typing.Any]]` is not a function.
         return field.default_factory()
     elif field.default is not MISSING:
         return field.default