op">Boost.Fusion</a>
            sequence and not a container type, the supplied attribute is directly
            used as the key for item lookup. The attribute is used as the attribute
            while calling a generator derived from the value stored in the symbol
            table for the found entry.
          </p>
<p>
            In any case, because the supplied key (i.e. either the first element
            of the <a href="../../../../../../../../libs/fusion/doc/html/index.html" target="_top">Boost