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API > API/Plugins > API/Plugins/RigVMDeveloper > API/Plugins/RigVMDeveloper/URigVMBlueprint
References
| Module | RigVMDeveloper |
| Header | /Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMBlueprint.h |
| Include | #include "RigVMBlueprint.h" |
FOnRigVMExternalVariablesChanged & OnExternalVariablesChanged&40;&41;