docs: function bindRenderedEvent(zr, ecIns) {
      zr.on('rendered', function () {
  
          ecIns.trigger('rendered');
  
          // The `finished` event should not be triggered repeatly,
          // so it should only be triggered when rendering indeed happend
          // in zrender. (Consider the case that dipatchAction is keep
          // triggering when mouse move).
          if (
              // Although zr is dirty if initial animation is not finished
              // and this checking is called on frame, we also check
              // animation finished for robustness.
              zr.animation.isFinished()
              && !ecIns[OPTION_UPDATED]
              && !ecIns._scheduler.unfinished
              && !ecIns._pendingActions.length
          ) {
              ecIns.trigger('finished');
          }
      });
  }