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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 round(self):
 """ Round coordinates. """

        x, y = self.anchor
        self.anchor = (normalizers.normalizeRounding(x),
                       normalizers.normalizeRounding(y))
        x, y = self.bcpIn
        self.bcpIn = (normalizers.normalizeRounding(x),
                      normalizers.normalizeRounding(y))
        x, y = self.bcpOut
        self.bcpOut = (normalizers.normalizeRounding(x),
                       normalizers.normalizeRounding(y))