# InvokeModelWithBidirectionalStreamInput
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Payload content, the speech chunk, for the bidirectional input of the invocation step.

## Contents
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 ** chunk **   <a name="bedrock-Type-runtime_InvokeModelWithBidirectionalStreamInput-chunk"></a>
The audio chunk that is used as input for the invocation step.  
Type: [BidirectionalInputPayloadPart](API_runtime_BidirectionalInputPayloadPart.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/bedrock-runtime-2023-09-30/InvokeModelWithBidirectionalStreamInput) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-runtime-2023-09-30/InvokeModelWithBidirectionalStreamInput) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-runtime-2023-09-30/InvokeModelWithBidirectionalStreamInput)