er">b</span></code>, then the
        type of the attribute of <code class="computeroutput"><span class="identifier">a</span> <span class="special">&gt;&gt;</span> <span class="identifier">b</span></code>
        will be <code class="computeroutput"><span class="identifier">tuple</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">,</span> <span class="identifier">B</span><span class="special">&gt;</span></code>.
      </p>
<div class="important"><table border="0" s