void RegisterFunctionReference ( const [FRigVMGraphFunctionIdentifier](API\Plugins\RigVM\RigVMCore\FRigVMGraphFunctionIdentifier) & InFunction, [TSoftObjectPtr](API\Runtime\CoreUObject\UObject\TSoftObjectPtr)< [URigVMFunctionReferenceNode](API\Plugins\RigVMDeveloper\RigVMModel\Nodes\URigVMFunctionReferenceNode) > InReference )