 using the syntax <code class="computeroutput"><span class="identifier">g</span><span class="special">[]</span></code>,
          where <code class="computeroutput"><span class="identifier">g</span></code> is an arbitrary
          generator expression.
        </p>
<h6>
<a name="spirit.karma.reference.action.h1"></a>
          <span class="phrase"><a name="spirit.karma.reference.action.header"></a></span><a class="link" href="action.html#spirit.karma.reference.action.header">Header</a>
        </h6>
<pre c