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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 shift(self, m: Union[float, pd.Series]) -> Union[int, pd.Series]: """Shifts floats so that the first 10 decimal digits are significant."""

        out = m % 1 * self.TEN_DIGIT_MODULUS // 1
        if isinstance(out, pd.Series):
            return out.astype(int)
        return int(out)