def unregister(cls):
        """Unregister properties and operators corresponding to this panel."""
        bpy.utils.unregister_class(ViewSynthesisPanelSettings)
        del bpy.types.Scene.view_synthesis_panel_settings
        bpy.utils.unregister_class(RunViewSynthesisOperator)
Unregister properties and operators corresponding to this panel.
photogrammetry_importer/panels/view_3d_view_synthesis_panel.py