def METHOD_NAME(phase_index: int):
    if charge_point_index == 0:
        return prefix + str(phase_index + 1)
    if charge_point_index <= 2:
        return "{}s{}{}".format(prefix, charge_point_index, phase_index + 1)
    return "{}{}lp{}".format(prefix, phase_index + 1, charge_point_index + 1)