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API > API/Plugins > API/Plugins/ControlRig > API/Plugins/ControlRig/Rigs > API/Plugins/ControlRig/Rigs/FRigElementKeyCollection
References
| Module | ControlRig |
| Header | /Engine/Plugins/Animation/ControlRig/Source/ControlRig/Public/Rigs/RigHierarchyDefines.h |
| Include | #include "Rigs/RigHierarchyDefines.h" |
bool IsEmpty&40;&41; const
Remarks
Returns true if this collection contains no elements.