Improvements

[joamatab]

• better name for pins (defined repr)
• clean code with sourcery
• add r to docstrings

[AustP]

Thanks @joamatab these changes look good. Our CI/CD is still having issues but @SkandanC thinks he can resolve them on Monday. After that, I'll run CI/CD on this and if it passes, we'll get it merged in.

[joamatab]

Any updates on this? Can you make a new release?

[SkandanC]

CI/CD fixed in #79

[SkandanC]

@joamatab, could you merge simphony's master branch into yours, after that it should pass all checks and I will merge it in.

Thanks again for your contribution.