="type-var">'b</span></span> <span>&#45;&gt;</span> <span>f:<span>(<span class="type-var">'b</span> <span>&#45;&gt;</span> <span class="type-var">'a</span> <span>&#45;&gt;</span> <span class="type-var">'b</span>)</span></span> <span>&#45;&gt;</span> <span class="type-var">'b</span></code></dt><dt class="spec value" id="val-unzip"><a href="#val-unzip" class="anchor"></a><code><span class="keyword">val</span> unzip : <span><span>(<span class="type-var">'a</span> * <span class="type-var">'b</span>)</span> <a h