# ClientChallenge
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Object containing information for Face Liveness challenges performed at the client side.

## Contents
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**Important**  
This data type is a UNION, so only one of the following members can be specified when used or returned.

 ** FaceMovementAndLightChallenge **   <a name="rekognition-Type-rekognitionstreaming_ClientChallenge-FaceMovementAndLightChallenge"></a>
Information about a face movement and light challenge type.  
Type: [FaceMovementAndLightClientChallenge](API_rekognitionstreaming_FaceMovementAndLightClientChallenge.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/rekognitionstreaming-2022-05-30/ClientChallenge) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/rekognitionstreaming-2022-05-30/ClientChallenge) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/rekognitionstreaming-2022-05-30/ClientChallenge)