def METHOD_NAME(self, request):
    params = self.map_parameters(request.query_params.dict())
    # Get list from _lastUpdated QueryDict(), since it can have multi params
    params['_lastUpdated'] = request.query_params.getlist('_lastUpdated')
    # Get list from service-date QueryDict(), since it can have multi params
    service_dates = request.query_params.getlist('service-date')
    if service_dates:
        params['service-date'] = service_dates
    schema = Schema(
        getattr(self, "QUERY_SCHEMA", {}),
        extra=REMOVE_EXTRA)
    return schema(params)