> I dislike using booleans instead of empty structs in the same way Eh? If you have `map[keyType]bool`, then a key lookup is simply the set membership function

> I dislike using booleans instead of empty structs in the same way Eh? If you have `map[keyType]bool`, then a key lookup is simply the set membership function. If a key exists, it returns true. Otherwise, false. That certainly doesn't seem analogous to abusing integers as booleans...