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@@ -16,7 +16,7 @@ pub struct Item<'a, 'b: 'a> {
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}
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/// A handle, identifying a socket in a set.
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-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Default)]
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+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Default, Hash)]
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pub struct Handle(usize);
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impl fmt::Display for Handle {
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