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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 with_rows(self, rows):
 """Return a table with additional rows. Args: ``rows`` (sequence of sequences):
 Each row has a value per column. If ``rows`` is a 2-d array, its shape must be (_, n) for n columns. Raises: ``ValueError``: If a row length differs from the column count. letter | count | points c | 2 | 3 d | 4 | 2 """

        self = self.copy()
        self.append(self._with_columns(zip(*rows)))
        return self