Checks if slab is symmetric, i.e., contains inversion symmetry.

        Args:
            symprec (float): Symmetry precision used for SpaceGroup analyzer.

        Returns:
            (bool) Whether slab contains inversion symmetry.

def is_symmetric(self, symprec=0.1):
        """
        Checks if slab is symmetric, i.e., contains inversion symmetry.

        Args:
            symprec (float): Symmetry precision used for SpaceGroup analyzer.

        Returns:
            (bool) Whether slab contains inversion symmetry.
        """

        sg = SpacegroupAnalyzer(self, symprec=symprec)
        return sg.is_laue()