---
title: add_zero_attn
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnnslayerparametersmultiheadattention/add_zero_attn
---

# add_zero_attn

A Boolean value that, if true, adds a row of zeroes to the projected K and V inputs to the calculation.

## Declaration

```swift
var add_zero_attn: Bool
```

## See Also

### Instance Properties

- [query](accelerate/bnnslayerparametersmultiheadattention/query.md)
- [key](accelerate/bnnslayerparametersmultiheadattention/key.md)
- [value](accelerate/bnnslayerparametersmultiheadattention/value.md)
- [key_attn_bias](accelerate/bnnslayerparametersmultiheadattention/key_attn_bias.md)
- [value_attn_bias](accelerate/bnnslayerparametersmultiheadattention/value_attn_bias.md)
- [output](accelerate/bnnslayerparametersmultiheadattention/output.md)
- [dropout](accelerate/bnnslayerparametersmultiheadattention/dropout.md)
- [seed](accelerate/bnnslayerparametersmultiheadattention/seed.md)