/a></td>
                           <td class='docblock-short'>
                                <p>Future for the <code>or_else</code> combinator, chaining a computation onto the end of
a future which fails with an error.</p>

                           </td>
                       </tr>
                       <tr class=' module-item'>
                           <td><a class="struct" href="struct.PollFn.html"
                                  title='struct tokio::prelude::future::PollFn'>PollFn</a></td>
   