---
title: "write(to:metadata:)"
framework: createml
role: symbol
role_heading: Instance Method
path: "createml/mlclassifier/write(to:metadata:)"
---

# write(to:metadata:)

Exports a Core ML model file for use in your app.

## Declaration

```swift
func write(to fileURL: URL, metadata: MLModelMetadata?) throws
```

## See Also

### Saving a classifier

- [write(toFile:metadata:)](createml/mlclassifier/write(tofile:metadata:).md)