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use rand::seq::SliceRandom;
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/// Chooses a random value from the given iterator
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/// panics when the iterator is empty
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pub fn choose_unchecked<'a, I: SliceRandom<Item = &'a T>, T>(i: I) -> &'a T {
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let mut rng = rand::thread_rng();
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i.choose(&mut rng).unwrap()
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}
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