Willing to PR to refactor the library (before contributing new features)

[fzyzcjy]

Hi, before PR for features, I want to firstly PR for refactoring. This is because, from the software engineering perspective, clean code is more maintainable and easy to add new features.

If I do the PR, will you merge it (given good quality code etc)? :)

Sample areas that I may work on:

• Adding unit and integration tests
• Code cleanup

Code cleanup example: In the code below, there are 4 items returned, but unpacked to only 3 variables

[albertqjiang]

Ah yes I'll definitely and very happily merge them!

And I agree that the first thing to do would be create good unit tests.