d="line-221"></span><span class="anchor" id="line-222"></span><span class="anchor" id="line-223"></span><span class="anchor" id="line-224"></span><span class="anchor" id="line-225"></span><pre> 1. &lt;&lt;Example()&gt;&gt;            - passes None, None
 2. &lt;&lt;Example(a, 2.2)&gt;&gt;      - error, "a" not an integer
 3. &lt;&lt;Example(7, 2.2)&gt;&gt;      - passes 7, 2.2
 4. &lt;&lt;Example(, 3.14)&gt;&gt;      - passes None, 3.14</pre><span class="anchor" id="line-226"></span><p class="line867">
<h4 