# ThingGroupMetadata
<a name="API_ThingGroupMetadata"></a>

Thing group metadata.

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

 ** creationDate **   <a name="iot-Type-ThingGroupMetadata-creationDate"></a>
The UNIX timestamp of when the thing group was created.  
Type: Timestamp  
Required: No

 ** parentGroupName **   <a name="iot-Type-ThingGroupMetadata-parentGroupName"></a>
The parent thing group name.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[a-zA-Z0-9:_-]+`   
Required: No

 ** rootToParentThingGroups **   <a name="iot-Type-ThingGroupMetadata-rootToParentThingGroups"></a>
The root parent thing group.  
Type: Array of [GroupNameAndArn](API_GroupNameAndArn.md) objects  
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/iot-2015-05-28/ThingGroupMetadata) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iot-2015-05-28/ThingGroupMetadata) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iot-2015-05-28/ThingGroupMetadata)