# DimensionKeyDescription
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An object that includes the requested dimension key values and aggregated metric values within a dimension group.

## Contents
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**Note**  
In the following list, the required parameters are described first.

 ** AdditionalMetrics **   <a name="performanceinsights-Type-DimensionKeyDescription-AdditionalMetrics"></a>
A map that contains the value for each additional metric.  
Type: String to double map  
Key Length Constraints: Minimum length of 0. Maximum length of 256.  
Key Pattern: `.*\S.*`   
Required: No

 ** Dimensions **   <a name="performanceinsights-Type-DimensionKeyDescription-Dimensions"></a>
A map of name-value pairs for the dimensions in the group.  
Type: String to string map  
Key Length Constraints: Minimum length of 0. Maximum length of 256.  
Key Pattern: `.*\S.*`   
Value Length Constraints: Minimum length of 0. Maximum length of 256.  
Value Pattern: `.*\S.*`   
Required: No

 ** Partitions **   <a name="performanceinsights-Type-DimensionKeyDescription-Partitions"></a>
If `PartitionBy` was specified, `PartitionKeys` contains the dimensions that were.  
Type: Array of doubles  
Required: No

 ** Total **   <a name="performanceinsights-Type-DimensionKeyDescription-Total"></a>
The aggregated metric value for the dimensions, over the requested time range.  
Type: Double  
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/pi-2018-02-27/DimensionKeyDescription) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/pi-2018-02-27/DimensionKeyDescription) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/pi-2018-02-27/DimensionKeyDescription)