, empty, not exist or not a valid periscope2 application, nothing will be added
and a related error message will be printed in console</p>
    </div>
    <div id="see-also">
    <h2>See also</h2>
    <div class="dont-index"><p><a href="create_left_sidebar.html">create_left_sidebar</a></p></div>
    </div>

  </div>
  <div class="col-md-3 hidden-xs hidden-sm" id="pkgdown-sidebar">
    <nav id="toc" data-toggle="toc" class="sticky-top"><h2 data-toc-skip>Contents</h2>
    </nav></div>
</div>


      <footer><d