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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 _get_symmetry(self):
 """ Get the symmetry operations associated with the structure. Returns: Symmetry operations as a tuple of two equal length sequences. (rotations, translations). "rotations" is the numpy integer array of the rotation matrices for scaled positions "translations" gives the numpy float64 array of the translation vectors in scaled positions. """

        d = spglib.get_symmetry(self._cell, symprec=self._symprec,
                                angle_tolerance=self._angle_tol)
        # Sometimes spglib returns small translation vectors, e.g.
        # [1e-4, 2e-4, 1e-4]
        # (these are in fractional coordinates, so should be small denominator
        # fractions)
        trans = []
        for t in d["translations"]:
            trans.append([float(Fraction.from_float(c).limit_denominator(1000))
                          for c in t])
        trans = np.array(trans)

        # fractional translations of 1 are more simply 0
        trans[np.abs(trans) == 1] = 0
        return d["rotations"], trans