move generated stubs to separate directory, too messty

django-stubs-generated/template/loaders/app_directories.pyi

@@ -0,0 +1,11 @@
+from typing import Optional, Tuple
+
+from django.template import Engine
+
+from .filesystem import Loader as FilesystemLoader
+
+
+class Loader(FilesystemLoader):
+    dirs: None
+    engine: Engine
+    def get_dirs(self) -> Tuple: ...