iter_ref 0.2.0

Traits for iterating over referenced data without consuming the iterator
Documentation 
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use std::iter::Chain;

use crate::prelude::*;

/*impl<A: I, B> IterRef for Chain<A, B> {
    fn iter(&self) -> impl Iterator<Item = <&Self as IntoIterator>::Item> {
        (self as Chain<A, B>).
    }
}*/