[URigVMGraph](API\Plugins\RigVMDeveloper\RigVMModel\URigVMGraph) * AddModel ( const [FName](API\Runtime\Core\UObject\FName) & InName, bool bSetupUndoRedo, const [FObjectInitializer](API\Runtime\CoreUObject\UObject\FObjectInitializer) * ObjectInitializer, bool bCreateController )