? byFields.aggregateFieldsById(inputs, combineFn, fieldAggregation.outputField) : combined.aggregateFieldsById(inputs, combineFn, fieldAggregation.outputField); } else {
? byFields.aggregateFieldsById(inputs, combineFn, fieldAggregation.outputField) : combined.aggregateFieldsById(inputs, combineFn, fieldAggregation.outputField); } else {