Creates a new child with the given name and default type.
| [Visual Basic .NET] | 
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|  | 
| [C#] | 
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| public IAgAvtrCatalogItem AddDefaultChild( string ChildName ); | 
| [Managed C++] | 
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| public: IAgAvtrCatalogItem^ AddDefaultChild( String __gc ^ ChildName ); | 
| [Unmanaged C++] | 
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|  | 
| [Java] | 
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| public IAgAvtrCatalogItem addDefaultChild( String ChildName ); | 
| [Python - STK API] | 
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| def AddDefaultChild(self, ChildName:str) -> "IAgAvtrCatalogItem": | 
- ChildName





