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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def icetea_main():
 """ Main function for running Icetea. Calls sys.exit with the return code to exit. :return: Nothing. """

    from icetea_lib import IceteaManager
    manager = IceteaManager.IceteaManager()
    return_code = manager.run()
    sys.exit(return_code)