code: function winwheelStopAnimation(canCallback)
  {
      // When the animation is stopped if canCallback is not false then try to call the callback.
      // false can be passed in to stop the after happening if the animation has been stopped before it ended normally.
      if (canCallback != false) {
          let callback = winwheelToDrawDuringAnimation.animation.callbackFinished;
  
          if (callback != null) {
              // If the callback is a function then call it, otherwise evaluate the property as javascript code.
              if (typeof callback === 'function') {
                  // Pass back the indicated segment as 99% of the time you will want to know this to inform the user of their prize.
                  callback(winwheelToDrawDuringAnimation.getIndicatedSegment());
              } else {
                  eval(callback);
              }
          }
      }
  }
docs: This global is set by the winwheel class to the wheel object to be re-drawn.