Add missing generic
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@ -2493,7 +2493,7 @@ trait SizeHint {
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}
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#[stable(feature = "bufreader_size_hint", since = "1.51.0")]
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impl SizeHint for T {
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impl<T> SizeHint for T {
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fn lower_bound(&self) -> usize {
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0
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}
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