# AttributeValue
<a name="API_AttributeValue"></a>

A value for a feature flag attribute. Only one of the members can be set.

## 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.

 ** BooleanValue **   <a name="appconfig-Type-AttributeValue-BooleanValue"></a>
A Boolean value for the attribute.  
Type: Boolean  
Required: No

 ** NumberArray **   <a name="appconfig-Type-AttributeValue-NumberArray"></a>
An array of numeric values for the attribute.  
Type: Array of doubles  
Array Members: Minimum number of 0 items. Maximum number of 25 items.  
Required: No

 ** NumberValue **   <a name="appconfig-Type-AttributeValue-NumberValue"></a>
A numeric value for the attribute.  
Type: Double  
Required: No

 ** StringArray **   <a name="appconfig-Type-AttributeValue-StringArray"></a>
An array of string values for the attribute.  
Type: Array of strings  
Array Members: Minimum number of 0 items. Maximum number of 25 items.  
Length Constraints: Minimum length of 0. Maximum length of 1024.  
Required: No

 ** StringValue **   <a name="appconfig-Type-AttributeValue-StringValue"></a>
A string value for the attribute.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 1024.  
Required: No

## See Also
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For more information about using this API in one of the language-specific Amazon SDKs, see the following:
+  [Amazon SDK for C\+\+](https://docs.amazonaws.cn/goto/SdkForCpp/appconfig-2019-10-09/AttributeValue) 
+  [Amazon SDK for Java V2](https://docs.amazonaws.cn/goto/SdkForJavaV2/appconfig-2019-10-09/AttributeValue) 
+  [Amazon SDK for Ruby V3](https://docs.amazonaws.cn/goto/SdkForRubyV3/appconfig-2019-10-09/AttributeValue)