title: Reload section method in swift 3?
body: <p>I have code written in objective c.I want to convert this code into the swift3 code.</p>
  
  <pre><code>[_expandableTableView reloadSections:[NSIndexSet indexSetWithIndex:gestureRecognizer.view.tag] withRowAnimation:UITableViewRowAnimationAutomatic];
  </code></pre>
  
  <p>After converting using online tool it gave me below code but it does not work</p>
  
  <pre><code>expandableTableView.reloadSections(IndexSet(index: gestureRecognizer.view!.tag), with: .automatic)
  </code></pre>
  
  <p>Please tell me how to do it ?</p>