def METHOD_NAME(num_domain=2, mode='pre_process', data_file = None, station = None, dis_type = 'coral'):
    spilt_time = {
        '2': [('2013-3-6 0:0', '2015-5-31 23:0'), ('2015-6-2 0:0', '2016-6-30 23:0')]
    }
    if mode == 'pre_process':
        return spilt_time[str(num_domain)]
    if mode == 'tdc':
        return TDC(num_domain, data_file, station, dis_type = dis_type)
    else:
        print("error in mode")