__init__.py

        try:
            gltf_importer = glTFImporter(filename, import_settings)
            gltf_importer.read()
            gltf_importer.checks()

            print("Data are loaded, start creating Blender stuff")

            start_time = time.time()
            BlenderGlTF.create(gltf_importer)
            elapsed_s = "{:.2f}s".format(time.time() - start_time)
            print("glTF import finished in " + elapsed_s)

            gltf_importer.log.removeHandler(gltf_importer.log_handler)

            return {'FINISHED'}

        except ImportError as e:
            self.report({'ERROR'}, e.args[0])
            return {'CANCELLED'}

    def set_debug_log(self):
        import logging
        if bpy.app.debug_value == 0:
            self.loglevel = logging.CRITICAL
        elif bpy.app.debug_value == 1:
            self.loglevel = logging.ERROR
        elif bpy.app.debug_value == 2:
            self.loglevel = logging.WARNING
        elif bpy.app.debug_value == 3:
            self.loglevel = logging.INFO
        else:
            self.loglevel = logging.NOTSET


def menu_func_import(self, context):
    self.layout.operator(ImportGLTF2.bl_idname, text='glTF 2.0 (.glb/.gltf)')


classes = (
    ExportGLTF2,
    GLTF_PT_export_main,
    GLTF_PT_export_include,
    GLTF_PT_export_transform,
    GLTF_PT_export_geometry,
    GLTF_PT_export_geometry_compression,
    GLTF_PT_export_animation,
    GLTF_PT_export_animation_export,
    GLTF_PT_export_animation_shapekeys,
    GLTF_PT_export_animation_skinning,
    GLTF_PT_export_user_extensions,
    ImportGLTF2
)


def register():
    for c in classes:
        bpy.utils.register_class(c)
    # bpy.utils.register_module(__name__)

    # add to the export / import menu
    bpy.types.TOPBAR_MT_file_export.append(menu_func_export)
    bpy.types.TOPBAR_MT_file_import.append(menu_func_import)


def unregister():
    for c in classes:
        bpy.utils.unregister_class(c)
    for f in extension_panel_unregister_functors:
        f()
    extension_panel_unregister_functors.clear()

    # bpy.utils.unregister_module(__name__)

    # remove from the export / import menu
    bpy.types.TOPBAR_MT_file_export.remove(menu_func_export)
    bpy.types.TOPBAR_MT_file_import.remove(menu_func_import)