docs: function(target, options) {
                          var poller = findPoller(target);
  
                          if (!poller) {
                              poller = new Poller(target, options);
                              pollers.push(poller);
                              poller.start();
                          } else {
                              poller.set(options);
                              poller.restart();
                          }
  
                          return poller;
                      }