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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_suburi(self, base, test):
 """Check if test is below base in a URI tree Both args must be URIs in reduced form. """

        if base == test:
            return True
        if base[0] != test[0]:
            return False
        common = posixpath.commonprefix((base[1], test[1]))
        if len(common) == len(base[1]):
            return True
        return False