const SortedSet = require('collections/sorted-set')
let set = new SortedSet([-10, -9])
let iterable = {
[Symbol.iterator]: () => set.iterate(0.01, 4)
}
for (const a of iterable) {
console.log(a)
}
should not print anything, instead prints out the entire set
should not print anything, instead prints out the entire set