lass="identifier">FUNCTION</span></code> that has the
            return type <code class="computeroutput"><span class="identifier">RETURN_TYPE</span></code>
            with <code class="computeroutput"><span class="identifier">FUNCTION_ARITY</span></code> number
            of arguments.
          </p>
<h6>
<a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_function.h3"></a>
            <span class="phrase"><a name="phoenix.modules.function.adapting_functions.boost_phoenix_adapt_func