Using ArcPy Python Add-In Interval Caller to do auto-refresh? [closed]

Question

I am using this code set called pythonaddin_interval_caller (written by Jason Scheirer) to do some map refresh every several seconds. The code was designed for arcgis python-addin. The benefit of this code is that it does the auto-check work without creating a separate thread.

    import tickextension.call_later
    import arcpy

    class Refresher(tickextension.call_later.CallQueue):
          def __init__(self):
              super(Refresher, self).__init__()
              self.call_later(self.refresh_view, 2)
          def refresh_view(Refresher):
              arcpy.RefreshActiveView()

          Refresher.call_later(Refresher.refresh_view, 2)

   refresh_ob = Refresher()
   refresh_ob.refresh_view()

This code is for python add-in. For some reason, I don't have permission to create add-in at this time. So I ran the script in arcmap python command window, I did two tests:

1. The original code only refreshed once, then, stopped. No error
2. I changed refresh_ob.refresh_view() to refresh_ob.refresh_view(refresh_ob), it throws the "takes exactly 1 argument (2 given) arcpy" error. I know its because I should not pass the object of self as the first argument. However, the program continued to run and did the auto-refresh every 2 seconds. The program works perfectly except this error message.

Are there any solutions to fix this?