  in the original position of the node in its parent.
  If Node is a node pair, two placeholders are returned.</p>

<h3 class="function"><a name="get_pos_in_parent-2">get_pos_in_parent/2</a></h3>
<div class="spec">
<p><tt>get_pos_in_parent(Node::<a href="tree.html#type-tree_node">tree:tree_node()</a>, Parent::<a href="tree.html#type-tree_node">tree:tree_node()</a>) -&gt; error | pos_integer()</tt><br></p>
</div><p>
  Finds the position of Node in the list of children
  of Parent.</p>

<h3 class="function"><