[Duplicate] Support for Sets

[Noobware1]

Hi, @ethanblake4 i can do the 2 and 3 points you said.

The 1st and 4th are just beyond me. If you could elaborate just on them 🙏🙏 it would be big help.

Originally posted by @Noobware1 in https://github.com/ethanblake4/dart_eval/issues/2#issuecomment-1802458975