y[(string, string)]): HttpHeaders</a></li>
          <li><a class="reference external"
          data-doc-search-tag="helpers: headers(): untyped" href="mike/helpers.html#headers.t">helpers: headers(): untyped</a></li>
          </ul></dd>
<dt><a name="insertBefore" href="#insertBefore"><span>insertBefore:</span></a></dt><dd><ul class="simple">
<li><a class="reference external"
          data-doc-search-tag="middleware: insertBefore(body: untyped): untyped" href="mike/middleware.html#insertBefore.m%2Cuntype