="sig-name descname"><span class="pre">align</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">reference</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><span class="pre">Self</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">output</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-