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# AWS::SageMaker::InferenceExperiment ShadowModelVariantConfig
<a name="aws-properties-sagemaker-inferenceexperiment-shadowmodelvariantconfig"></a>

The name and sampling percentage of a shadow variant.

## Syntax
<a name="aws-properties-sagemaker-inferenceexperiment-shadowmodelvariantconfig-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-sagemaker-inferenceexperiment-shadowmodelvariantconfig-syntax.json"></a>

```
{
  "[SamplingPercentage](#cfn-sagemaker-inferenceexperiment-shadowmodelvariantconfig-samplingpercentage)" : Integer,
  "[ShadowModelVariantName](#cfn-sagemaker-inferenceexperiment-shadowmodelvariantconfig-shadowmodelvariantname)" : String
}
```

### YAML
<a name="aws-properties-sagemaker-inferenceexperiment-shadowmodelvariantconfig-syntax.yaml"></a>

```
  [SamplingPercentage](#cfn-sagemaker-inferenceexperiment-shadowmodelvariantconfig-samplingpercentage): Integer
  [ShadowModelVariantName](#cfn-sagemaker-inferenceexperiment-shadowmodelvariantconfig-shadowmodelvariantname): String
```

## Properties
<a name="aws-properties-sagemaker-inferenceexperiment-shadowmodelvariantconfig-properties"></a>

`SamplingPercentage`  <a name="cfn-sagemaker-inferenceexperiment-shadowmodelvariantconfig-samplingpercentage"></a>
 The percentage of inference requests that Amazon SageMaker replicates from the production variant to the shadow variant.   
*Required*: Yes  
*Type*: Integer  
*Maximum*: `100`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ShadowModelVariantName`  <a name="cfn-sagemaker-inferenceexperiment-shadowmodelvariantconfig-shadowmodelvariantname"></a>
The name of the shadow variant.  
*Required*: Yes  
*Type*: String  
*Pattern*: `^[a-zA-Z0-9]([\-a-zA-Z0-9]*[a-zA-Z0-9])?`  
*Maximum*: `63`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)