e>.
          </p>
</td></tr>
</table></div>
<p>
          Let's take a look at this from a more formal perspective. The sequence
          attribute propagation rules define a special behavior if generators exposing
          <code class="computeroutput"><span class="identifier">unused_type</span></code> as their attribute
          are involved (see <a class="link" href="../../karma/quick_reference/compound_attribute_rules.html" title="Compound Attribute Rules">Generator
          Compound Attribute Rules