an>&#x000A;347:                 <span class="ruby-identifier">htmls</span>.<span class="ruby-identifier">flatten!</span>&#x000A;348:                 <span class="ruby-identifier">htmls</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">htmls</span>.<span class="ruby-identifier">first</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">htmls</span>&#x0