[UPDT] HORILLA: Update missing signals in signals.py

horilla/signals.py

@@ -7,5 +7,14 @@ from django.dispatch import Signal
 pre_bulk_update = Signal()
 post_bulk_update = Signal()
 
+pre_model_clean = Signal()
+post_model_clean = Signal()
+
+pre_scheduler = Signal()
+post_scheduler = Signal()
+
 pre_generic_delete = Signal()
 post_generic_delete = Signal()
+
+pre_generic_import = Signal()
+post_generic_import = Signal()