ncapsulating the code to perform a numeric conversion with
        the direction and properties specified by the Traits template parameter.
        It can optionally take some <a class="link" href="numeric_converter_policy_classes.html" title="Numeric Converter Policy Classes">policies</a>
        which can be used to customize its behavior. The <code class="computeroutput"><span class="identifier">Traits</span></code>
        parameter is not a policy but the parameter that defines the conversion.
      </