pub fn iter(&self) -> Iter {
        Iter {
            current: self.head,
            _list: self,
        }
    }
/// Returns an iterator over the items in this list.
Returns an iterator over the items in this list.
Returns an iterator over the items in this list .
pub fn iter(&self) -> Iter {
        Iter {
            current: self.head,
            _list: self,
        }
    }
pub fn iter ( & self ) -> Iter { Iter { current : self . head , _list : self , } }
Returns an iterator over the items in this list.
Returns an iterator over the items in this list .
&self