class FOutlinerItemModelMixin : public [UE::Sequencer::FOutlinerExtensionShim](API\Editor\SequencerCore\MVVM\Extensions\FOutlinerExtensionShim), public [UE::Sequencer::FGeometryExtensionShim](API\Editor\SequencerCore\MVVM\Extensions\FGeometryExtensionShim), public [UE::Sequencer::FPinnableExtensionShim](API\Editor\SequencerCore\MVVM\Extensions\FPinnableExtensionShim), public [UE::Sequencer::FHoveredExtensionShim](API\Editor\SequencerCore\MVVM\Extensions\FHoveredExtensionShim), public [UE::Sequencer::IDimmableExtension](API\Editor\SequencerCore\MVVM\Extensions\IDimmableExtension), public [UE::Sequencer::ISoloableExtension](API\Editor\SequencerCore\MVVM\Extensions\ISoloableExtension), public [UE::Sequencer::IMutableExtension](API\Editor\SequencerCore\MVVM\Extensions\IMutableExtension), public [UE::Sequencer::FCurveEditorTreeItemExtensionShim](API\Editor\Sequencer\MVVM\Extensions\FCurveEditorTreeItemExtensionShi-), public [ICurveEditorTreeItem](API\Editor\CurveEditor\Tree\ICurveEditorTreeItem)