A boolean

        </td>

        <td>

          By default indexed elements have Python reference semantics and are

          returned by proxy. This can be disabled by supplying

          <strong>true</strong> in the <tt>NoProxy</tt> template parameter.

        </td>

        <td>

          false

        </td>

      </tr>

      <tr>

        <td>

          <font color="#007F00"><tt>Element</tt></font>

        </td>

        <td>&nbsp;

          

        </td>

        <td>

