move generated stubs to separate directory, too messty

django-stubs-generated/utils/module_loading.pyi

@@ -0,0 +1,7 @@
+from typing import Any, Optional
+
+
+def import_string(dotted_path: str) -> Any: ...
+def autodiscover_modules(*args: Any, **kwargs: Any) -> None: ...
+def module_has_submodule(package: Any, module_name: str) -> bool: ...
+def module_dir(module: Any) -> str: ...