macrovision/scripts/blender/addons/macrovision/__init__.py

from macrovision import ui, ops, props

import bpy
import importlib

bl_info = {
    "name": "Macrovision",
    "blender": (3, 0, 0),
    "category": "Import-Export"
}

def register():
    importlib.reload(ui)
    importlib.reload(ops)
    importlib.reload(props)
    cls_lists = [props.clses, ops.clses, ui.clses]
    for cls_list in cls_lists:
        for cls in cls_list:
            bpy.utils.register_class(cls)
    
    for id, prop in props.scene_props.items():
        setattr(bpy.types.Scene, id, prop)
    for id, prop in props.collection_props.items():
        setattr(bpy.types.Collection, id, prop)
        

def unregister():
    cls_lists = [props.clses, ops.clses, ui.clses][::-1]
    for cls_list in cls_lists[::-1]:
        for cls in cls_list:
            bpy.utils.unregister_class(cls)

    for id in props.scene_props:
        if id in props.scene_props:
            delattr(bpy.types.Scene, id)