Added typing

src/hope_country_report/web/views/charts.py

@@ -2,6 +2,7 @@
 
 from django.contrib.auth.mixins import PermissionRequiredMixin
 from django.http import HttpResponseBase
+from django.db.models.query import QuerySet
 from django.views.generic import DetailView, ListView
 
 from hope_country_report.apps.power_query.utils import to_dataset
@@ -15,7 +16,7 @@ class ChartListView(SelectedOfficeMixin, PermissionRequiredMixin, ListView[Chart
     permission_required = ["power_query.view_chartpage"]
     model = ChartPage
 
-    def get_queryset(self):
+    def get_queryset(self) -> QuerySet[ChartPage]:
         """
         Filter the queryset to return only ChartPages related to the selected CountryOffice.
         """