ber_type'.
      Using this functionality with our 'MyFindType' type above we create the nullary
      metafunction:
    </p>
<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">tti</span><span class="special">::</span><span class="identifier">valid_member_type</span>
  <span class="special">&lt;</span>
  <span class="identifier">MyFindType</span>
  <span class="special">&gt;</span>
</pre>
<p>
      directly instead of replicating the same