e-symbol">: </span><span class="tsd-signature-type">void</span><a href="#forEach.forEach-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24"><use href="#icon-anchor"></use></svg></a></li><li class="tsd-description"><div class="tsd-comment tsd-typography"><p>Loops over all headers.</p>
</div><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><h5><span class="tsd-kind-parameter">cb</span>: <span class="tsd-signature-symbol">(</