/a></span></code></summary><div class="odoc-spec"><div class="spec type anchored" id="type-matcher"><a href="#type-matcher" class="anchor"></a><code><span><span class="keyword">type</span> <span>('context, 'f, 'arg_payload) matcher</span></span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-dispatcher"><a href="#type-dispatcher" class="anchor"></a><code><span><span class="keyword">type</span> <span>('context, 'f, 'arg_payload) dispatcher</span></span></code></div></div><d