gistfile1.py

class PaymentSummaryViewSet(viewsets.ModelViewSet):
    queryset = PaymentSummary.objects.all()
    serializer_class = PaymentSummarySerializer
 
    @action()
    def send(self, request, pk=None):
        # code to send individual payment summary
        
    @collection_action()
    def send_pending(self, request):
        # will be called when hitting
        # /api/payment-summary/send_pending/