def minimum_geometries(self, n=None, symmetry_measure_type=None, max_csm=None):
        """
        Returns a list of geometries with increasing continuous symmetry measure in this ChemicalEnvironments object
        :param n: Number of geometries to be included in the list
        :return: list of geometries with increasing continuous symmetry measure in this ChemicalEnvironments object
        :raise: ValueError if no coordination geometry is found in this ChemicalEnvironments object
        """
        cglist = [cg for cg in self.coord_geoms]
        if symmetry_measure_type is None:
            csms = np.array([self.coord_geoms[cg]['other_symmetry_measures']['csm_wcs_ctwcc'] for cg in cglist])
        else:
            csms = np.array([self.coord_geoms[cg]['other_symmetry_measures'][symmetry_measure_type] for cg in cglist])
        csmlist = [self.coord_geoms[cg] for cg in cglist]
        isorted = np.argsort(csms)
        if max_csm is not None:
            if n is None:
                return [(cglist[ii], csmlist[ii]) for ii in isorted if csms[ii] <= max_csm]
            else:
                return [(cglist[ii], csmlist[ii]) for ii in isorted[:n] if csms[ii] <= max_csm]
        else:
            if n is None:
                return [(cglist[ii], csmlist[ii]) for ii in isorted]
            else:
                return [(cglist[ii], csmlist[ii]) for ii in isorted[:n]]
Returns a list of geometries with increasing continuous symmetry measure in this ChemicalEnvironments object
        :param n: Number of geometries to be included in the list
        :return: list of geometries with increasing continuous symmetry measure in this ChemicalEnvironments object
        :raise: ValueError if no coordination geometry is found in this ChemicalEnvironments object