# GuardrailChecksContentBlock
<a name="API_runtime_GuardrailChecksContentBlock"></a>

A content block within a message to evaluate.

## 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.

 ** text **   <a name="bedrock-Type-runtime_GuardrailChecksContentBlock-text"></a>
The text content to evaluate.  
Type: String  
Length Constraints: Minimum length of 1.  
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\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/bedrock-runtime-2023-09-30/GuardrailChecksContentBlock) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-runtime-2023-09-30/GuardrailChecksContentBlock) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-runtime-2023-09-30/GuardrailChecksContentBlock)