is provided, tooltip objects will be delegated to the specified targets</td>
      </tr>
      <tr>
         <td>trigger</td>
         <td>string</td>
         <td>'click'</td>
         <td>how popover is triggered - click | hover | focus | manual</td>
      </tr>
      <tr>
         <td>title</td>
         <td>string | function</td>
         <td>''</td>
         <td>default title value if `title` attribute isn't present</td>
      </tr>
      <tr>
         <td>content</td>
         <td>string | function</t