ss="op">&lt;</span><span class="st"> </span><span class="dv">0</span>, <span class="dt">msg =</span> <span class="st">"You need to have at least one number under zero."</span>)</a>
<a class="sourceLine" id="cb31-5" title="5"><span class="co">#&gt; Warning: You need to have at least one number under zero.</span></a>
<a class="sourceLine" id="cb31-6" title="6"></a>
<a class="sourceLine" id="cb31-7" title="7"><span class="kw"><a href="reference/messagehandler.html">message_if_all</a></span>(<span class="dv">1<