def METHOD_NAME(surface, multiplicity):
    """Makes a super cell out of the surface coordinates"""
    surf_super = []
    for site in surface:
        for u in range(1, multiplicity[0] + 1):
            for v in range(1, multiplicity[1] + 1):
                surf_super.append(
                    [
                        (site[0] + (u - 1)) / multiplicity[0],
                        (site[1] + (v - 1)) / multiplicity[1],
                    ]
                )
    return np.asarray(surf_super)