ELEM the last one specified is in effect.
      </p>
<p>
        The splitting modifiers BOOST_VMD_RETURN_NO_AFTER and BOOST_VMD_RETURN_AFTER
        work with either return type modifiers or filtering modifiers if they are
        used. The splitting modifier BOOST_VMD_RETURN_ONLY_AFTER works with filtering
        modifiers if it is used and any return type modifiers will be ignored. Optional
        modifiers may occur in any order after the required parameters to BOOST_VMD_ELEM.
      </p>
<p>
        I