ies of memory to track all
  transformed elements seen so far. If only duplicate transformed
  elements remain, infinite iterators will never return.</p>

<h3 class="function"><a name="unzip-1">unzip/1</a></h3>
<div class="spec">
<p><tt>unzip(Iterator1) -&gt; {Iterator2, Iterator3}</tt>
<ul class="definitions"><li><tt>Iterator1 = <a href="#type-iterator">iterator</a>({A, B})</tt></li><li><tt>Iterator2 = <a href="#type-iterator">iterator</a>(A)</tt></li><li><tt>Iterator3 = <a href="#type-iterator">iterator</