r2"><span class="keyword">val</span> error2</span> : <code class="type">'a -> 'b -> unit</code></pre>
<pre><span id="VALerror3"><span class="keyword">val</span> error3</span> : <code class="type">'a -> 'b -> 'c -> unit</code></pre>
<pre><span id="VALerror4"><span class="keyword">val</span> error4</span> : <code class="type">'a -> 'b -> 'c -> 'd -> unit</code></pre>
<pre><span id="VALerrorMany"><span class="keyword">val</span> errorMany</span> : <code class="type">'a array -> unit</code></pre>
<pre><span id=