   <div class="pointer"></div>
                      <div class="abstract">
                        <p>Returns a Boolean value that indicates whether the receiver implements or inherits
a method that can respond to a specified message.</p>

                      </div>
                      <div class="declaration">
                        <h4>Declaration</h4>
                        <div class="language">
                          <p class="aside-title">Swift</p>
                          <pre class="highl