p">(</span>
        <span class="s1">&#39;color&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;red&#39;</span><span class="p">,</span>
        <span class="s1">&#39;shape&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;round&#39;</span><span class="p">,</span>
        <span class="s1">&#39;height&#39;</span> <span class="o">=&gt;</span> <span class="k">NULL</span>
<span class="p">);</span>
</pre></div>
</div>
<p>You can set the third parameter to any default value you like.</p