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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 purgeRDR(rh):
 """ Purge the reader belonging to the virtual machine. Input: Request Handle with the following properties: function - 'CHANGEVM' subfunction - 'PURGERDR' userid - userid of the virtual machine Output: Request Handle updated with the results. Return code - 0: ok, non-zero: error """


    rh.printSysLog("Enter changeVM.purgeRDR")
    results = purgeReader(rh)
    rh.updateResults(results)
    rh.printSysLog("Exit changeVM.purgeRDR, rc: " +
        str(rh.results['overallRC']))
    return rh.results['overallRC']