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# BNNS.FusedLayer

The base class for fused convolution-normalization and fully connected-normalization layers.

```
class FusedLayer
```

## Topics

### Applying a Fused Layer

[`func apply(batchSize: Int, input: BNNSNDArrayDescriptor, output: BNNSNDArrayDescriptor, for: BNNS.LearningPhase) throws`](/documentation/Accelerate/BNNS/FusedLayer/apply(batchSize:input:output:for:))

Applies the layer to a set of input objects, writing the result to a set of output objects.

[`func applyBackward(batchSize: Int, input: BNNSNDArrayDescriptor, output: BNNSNDArrayDescriptor, outputGradient: BNNSNDArrayDescriptor, generatingInputGradient: BNNSNDArrayDescriptor, generatingParameterGradients: [BNNSNDArrayDescriptor]) throws`](/documentation/Accelerate/BNNS/FusedLayer/applyBackward(batchSize:input:output:outputGradient:generatingInputGradient:generatingParameterGradients:))

Applies the layer backward to generate input gradients.

## Relationships

### Inherited By

[`FusedParametersLayer`](/documentation/Accelerate/BNNS/FusedParametersLayer)

[`FusedFullyConnectedNormalizationLayer`](/documentation/Accelerate/BNNS/FusedFullyConnectedNormalizationLayer)

[`FusedConvolutionNormalizationLayer`](/documentation/Accelerate/BNNS/FusedConvolutionNormalizationLayer)

### Inherits From

[`Layer`](/documentation/Accelerate/BNNS/Layer)

---

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