use requests via cast as drf requires

backend/api/search/views.py

@@ -1,4 +1,6 @@
 from rest_framework import generics
+from typing import cast
+from rest_framework.request import Request
 from routes.models import Route
 from .serializers import SearchRouteSerializer
 from api.utils.pagination import StandardResultsSetPagination
@@ -12,8 +14,8 @@ class SearchRouteListView(generics.ListAPIView):
     
     def get_queryset(self):
         owner_type = self.kwargs.get('owner_type')
-        from_city = self.request.query_params.get('from')
-        to_city = self.request.query_params.get('to')
+        from_city = cast(Request, self.request).query_params.get('from')
+        to_city = cast(Request, self.request).query_params.get('to')
         
         valid_types = [choice[0] for choice in owner_type_choices]
         current_time = timezone.now()