# EvaluationMetadata
<a name="API_EvaluationMetadata"></a>

Metadata for the evaluation, including session-specific ground truth data.

## Contents
<a name="API_EvaluationMetadata_Contents"></a>

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

 ** sessionMetadata **   <a name="BedrockAgentCore-Type-EvaluationMetadata-sessionMetadata"></a>
A list of session metadata entries containing ground truth data and test scenario identifiers for specific sessions.  
Type: Array of [SessionMetadataShape](API_SessionMetadataShape.md) objects  
Array Members: Minimum number of 0 items. Maximum number of 500 items.  
Required: No

## See Also
<a name="API_EvaluationMetadata_SeeAlso"></a>

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-agentcore-2024-02-28/EvaluationMetadata) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/bedrock-agentcore-2024-02-28/EvaluationMetadata) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/bedrock-agentcore-2024-02-28/EvaluationMetadata)