---
title: "write(toFile:metadata:)"
framework: createml
role: symbol
role_heading: Instance Method
path: "createml/mllinearregressor/write(tofile:metadata:)"
---

# write(toFile:metadata:)

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

## Declaration

```swift
func write(toFile path: String, metadata: MLModelMetadata? = nil) throws
```

## See Also

### Saving a linear regressor

- [write(to:metadata:)](createml/mllinearregressor/write(to:metadata:).md)