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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 is_newer_than(pth1, pth2):
 """ Return true if either file pth1 or file pth2 don't exist, or if pth1 has been modified more recently than pth2 """


    return not os.path.exists(pth1) or not os.path.exists(pth2) or \
       os.stat(pth1).st_mtime > os.stat(pth2).st_mtime