Help with level design with blender

[Gary_Turbo]

I’m making a code to make export data while using blender for level design based on the youtube video

import bpy
import json
import os

def export_levels(filepath):
    levels = {}

    for collection in bpy.data.collections:
        level_name = collection.name
        level_objects = []

        for obj in collection.all_objects:
            if obj.type in {'MESH', 'EMPTY'}:
                entry = {
                    "name": obj.name,
                    "type": obj.type,
                    "location": list(obj.location),
                    "rotation": list(obj.rotation_euler),
                    "scale": list(obj.scale),
                    "custom_properties": {
                        k: obj[k] for k in obj.keys() if k not in '_RNA_UI'
                    }
                }
                level_objects.append(entry)

        if level_objects:
            levels[level_name] = level_objects

    with open(filepath, 'w') as f:
        json.dump(levels, f, indent=4)

# Usage
blend_dir = os.path.dirname(bpy.data.filepath)
export_path = os.path.join(blend_dir, "levels.json")
export_levels(export_path)
print(f"Exported levels to {export_path}")

Now i want to make sure the collections are the levels but i have a feeling it might not be right