move generated stubs to separate directory, too messty

django-stubs-generated/utils/itercompat.pyi

@@ -0,0 +1,19 @@
+from tempfile import _TemporaryFileWrapper
+from typing import Any, List, Optional, Tuple, Union
+
+from django.core.checks.messages import CheckMessage
+
+
+def is_iterable(
+    x: Optional[
+        Union[
+            List[List[Union[List[List[Union[List[List[str]], str]]], str]]],
+            List[Tuple[Optional[Union[int, str]], Union[int, str]]],
+            List[CheckMessage],
+            List[int],
+            List[str],
+            Tuple[Union[Tuple[str, str], _TemporaryFileWrapper]],
+            int,
+        ]
+    ]
+) -> bool: ...