a</span>, <span class="type-var">'b</span>)</span> <a href="index.html#type-t">t</a></span> <span>&#45;&gt;</span> <span><span>(<span class="type-var">'a</span>, <span class="type-var">'b</span>)</span> <a href="index.html#type-t">t</a></span> <span>&#45;&gt;</span> <span><span>(<span class="type-var">'a</span>, <span class="type-var">'b</span>)</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p>chain two generators in order</p></dd></dl><dl><dt class="spec value" id="val-of_list"><a href=