---
title: BNNSParameter
framework: accelerate
role: symbol
role_heading: Global Variable
path: accelerate/bnnsparameter
---

# BNNSParameter

A parameter that’s trainable, such as weights or bias.

## Declaration

```swift
var BNNSParameter: BNNSDescriptorType { get }
```

## See Also

### Descriptor Types

- [init(_:)](accelerate/bnnsdescriptortype/init(_:).md)
- [init(rawValue:)](accelerate/bnnsdescriptortype/init(rawvalue:).md)
- [rawValue](accelerate/bnnsdescriptortype/rawvalue.md)
- [BNNSConstant](accelerate/bnnsconstant.md)
- [BNNSSample](accelerate/bnnssample.md)