href="#type-iterator">iterator</a>(B)</tt></li><li><tt>Iterator3 = <a href="#type-iterator">iterator</a>(A | B)</tt></li></ul></p>
<p> </p>
</div><p><p>
  Returns the sorted iterator formed by merging <code>Iterator1</code> and
  <code>Iterator2</code>. Both <code>Iterator1</code> and <code>Iterator2</code> must be sorted and
  contain no duplicates before evaluating this function. When two
  elements compare equal, the element from <code>Iterator1</code> is picked and
  the one from <code>Iterator2</code> 