move generated stubs to separate directory, too messty

django-stubs-generated/utils/numberformat.pyi

@@ -0,0 +1,13 @@
+from decimal import Decimal
+from typing import Any, Optional, Tuple, Union
+
+
+def format(
+    number: Union[Decimal, float, str],
+    decimal_sep: str,
+    decimal_pos: Optional[int] = ...,
+    grouping: Union[Tuple[int, int, int], int] = ...,
+    thousand_sep: str = ...,
+    force_grouping: bool = ...,
+    use_l10n: Optional[bool] = ...,
+) -> str: ...