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Merge pull request #771 from tlyu/iterators5-trait-tweak
fix(iterators5): derive Clone, Copy
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@ -15,7 +15,7 @@
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use std::collections::HashMap;
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#[derive(PartialEq, Eq)]
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#[derive(Clone, Copy, PartialEq, Eq)]
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enum Progress {
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None,
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Some,
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