class ref VecKeys[A: Any #share]
new ref create( v: Vec[A] val) : VecKeys[A] ref^
fun box has_next() : Bool val
fun ref next() : USize val ?
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© 2014-2015, Causality Ltd.
Licensed under the BSD 2-Clause License.
https://stdlib.ponylang.io/collections-persistent-VecKeys