---
title: outputName
framework: createml
role: symbol
role_heading: Instance Property
path: createml/mlimageclassifier/customfeatureextractor/outputname
---

# outputName

The name of the output from a feature extraction layer within the model.

## Declaration

```swift
var outputName: String?
```

## Discussion

Discussion When training an image classifier with a custom feature extractor, use outputName to select a layer within the model that has an output of MLMultiArray. Set outputName to nil if the model (specified by modelPath) has only one output of type MLMultiArray.

## See Also

### Configuring a custom feature extractor

- [modelPath](createml/mlimageclassifier/customfeatureextractor/modelpath.md)