parameter, <code class="computeroutput"><span class="identifier">attr</span></code>.
          Here <code class="computeroutput"><span class="identifier">Attrib</span></code> is the attribute
          type of the generator attached to the semantic action.
        </p>
<p>
          The type <code class="computeroutput"><span class="identifier">Context</span></code> is the
          type of the generator execution context. This type is unspecified and depends
          on the context the generator is invoke