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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 splitext(path):
 # type: (str) -> Tuple[str, str] """Like os.path.splitext, but take off .tar too"""

    base, ext = posixpath.splitext(path)
    if base.lower().endswith('.tar'):
        ext = base[-4:] + ext
        base = base[:-4]
    return base, ext