ass='op'>=</span> <span class='id identifier rubyid_old_y'>old_y</span> <span class='op'>-</span> <span class='id identifier rubyid_height'>height</span>
  <span class='lbracket'>[</span><span class='id identifier rubyid_label'>label</span><span class='comma'>,</span> <span class='id identifier rubyid_b_label'>b_label</span><span class='rbracket'>]</span>
<span class='kw'>end</span></pre>
    </td>
  </tr>
</table>
</div>
    
      <div class="method_details ">
  <h3 class="signature " id="truncate-instanc