code: def del_current_vrf(self):
          
  
          vrf_id = int(request.json['vrf_id'])
          if vrf_id in session['current_vrfs']:
              del session['current_vrfs'][vrf_id]
  
              session.save()
  
          return json.dumps(session.get('current_vrfs', {}))
docs: Remove VRF to filter list session variable