ass="bold"><strong>Effects</strong></span>: Inserts new_node in the set using the information obtained from the "commit_data" that a previous "insert_check" filled.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant time.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Notes</strong></span>: This function has only sense if a "insert_unique_check" has been previously executed to fill "commit_data". No value should be inserted or erased 