def scale(self, new_volume: float) -> "Lattice":
        """
        Return a new Lattice with volume new_volume by performing a
        scaling of the lattice vectors so that length proportions and angles
        are preserved.

        Args:
            new_volume:
                New volume to scale to.

        Returns:
            New lattice with desired volume.
        """
        versors = self.matrix / self.abc

        geo_factor = abs(dot(np.cross(versors[0], versors[1]), versors[2]))

        ratios = np.array(self.abc) / self.c

        new_c = (new_volume / (geo_factor * np.prod(ratios))) ** (1 / 3.0)

        return Lattice(versors * (new_c * ratios))
Return a new Lattice with volume new_volume by performing a
        scaling of the lattice vectors so that length proportions and angles
        are preserved.

        Args:
            new_volume:
                New volume to scale to.

        Returns:
            New lattice with desired volume.