License clarification request

[Ahnhojin1223]

Hello Li Jiangnan,

Thank you for sharing your work!

I noticed that the repository path_optimizer specifies the MIT license, which is very helpful.

However, the path_optimizer_2 repository does not currently include any license information.

Could you kindly clarify the license for 'path_optimizer_2'?
If it is also under the MIT license, it would be great if you could include a LICENSE file or specify it in the GitHub repository settings.

Thank you for your time and for providing these valuable resources!