def unregister():
app_handler_ops(remove=handler_dict)
set_frame_change(None)
bpy.app.handlers.load_post.remove(call_user_functions_on_post_load_event)
def register():
app_handler_ops(append=handler_dict)
data_structure.setup_init()
update_frame_change_mode()
bpy.app.handlers.load_post.append(call_user_functions_on_post_load_event)
