---
title: i_desc
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnnslayerparametersactivation/i_desc
---

# i_desc

The descriptor of the input.

## Declaration

```swift
var i_desc: BNNSNDArrayDescriptor
```

## See Also

### Instance Properties

- [o_desc](accelerate/bnnslayerparametersactivation/o_desc.md)
- [activation](accelerate/bnnslayerparametersactivation/activation.md)
- [axis_flags](accelerate/bnnslayerparametersactivation/axis_flags.md)