ing_the_metafunction"></a></span><a class="link" href="tti_detail_has_member_function.html#the_type_traits_introspection_library.tti_detail_has_member_function.invoking_the_metafunction">Invoking
      the metafunction</a>
    </h4>
<p>
      You invoke the metafunction by instantiating the template with an enclosing
      type to introspect and the signature of the member function as a series of
      template parameters. Alternatively you can invoke the metafunction by passing
      it a single type which