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# init(learningRate:beta1:beta2:timeStep:epsilon:gradientScale:weightDecay:gradientClipping:usesAMSGrad:)

Returns a new AdamW optimizer object with gradient clipped by value or clipped by norm.

```
init(learningRate: Float = 0.001, beta1: Float = 0.9, beta2: Float = 0.999, timeStep: Float = 1, epsilon: Float = 1e-8, gradientScale: Float, weightDecay: Float = 1e-2, gradientClipping: BNNS.GradientClipping, usesAMSGrad: Bool = false)
```

## Parameters

`learningRate`

A value that specifies the learning rate.

`beta1`

A value that specifies the first-moment constant, in the range `0` to `1`.

`beta2`

A value that specifies the second-moment constant, in the range `0` to `1`.

`timeStep`

A value that’s at least `1` and represents the optimizer’s current time.

`epsilon`

The epsilon value you use to improve numerical stability.

`gradientScale`

A value that specifies the gradient scaling factor.

`weightDecay`

The weight decay coefficient.

`gradientClipping`

The gradient clipping function and bounds.

`usesAMSGrad`

A Boolean value that specifies whether the optimizer should use the AMSGrad variant.

## Discussion

---

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