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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 line_showLog(self):
 """ SAS Kernel magic to show the SAS log for the previous submitted code. This magic is only available within the SAS Kernel """

        if self.kernel.mva is None:
            print("Can't show log because no session exists")
        else:
            return self.kernel.Display(HTML(self.kernel.cachedlog))