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> Like there's still no Set class

map[T]struct{} ?

So, like they said, no Set class.

https://github.com/deckarep/golang-set offers a thread safety option and methods like contains all, intersect, and equal.

There is also https://github.com/hashicorp/go-set which includes HashSet and TreeSet implementations for types with custom hashing functions, and orderable data respectively.

You do need to buy a lot of batteries with go.

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