          <div class="parameters">
                <span class="parameter" id="observe-param-target"><span class="type-annotation"><a href="polymer_app_layout/Node-class.html">Node</a></span> <span class="parameter-name">target</span></span>,<br>{<span class="parameter" id="observe-param-childList"><span class="type-annotation">bool</span> <span class="parameter-name">childList</span></span>,<br><span class="parameter" id="observe-param-attributes"><span class="type-annotation">bool</span> <span class="para