def METHOD_NAME(file_path, batch_size=6, station='Changping'):
    data_file = os.path.join(file_path, "PRSA_Data_1.pkl")
    mean_train, std_train = data_weather.get_weather_data_statistic(data_file, station=station, start_time='2013-3-1 0:0',
                                                                    end_time='2016-10-30 23:0')
    train_loader = data_weather.get_weather_data(data_file, station=station, start_time='2013-3-6 0:0',
                                                 end_time='2015-5-31 23:0', batch_size=batch_size, mean=mean_train, std=std_train)
    valid_train_loader = data_weather.get_weather_data(data_file, station=station, start_time='2015-6-2 0:0',
                                                       end_time='2016-6-30 23:0', batch_size=batch_size, mean=mean_train, std=std_train)
    valid_vld_loader = data_weather.get_weather_data(data_file, station=station, start_time='2016-7-2 0:0',
                                                     end_time='2016-10-30 23:0', batch_size=batch_size, mean=mean_train, std=std_train)
    test_loader = data_weather.get_weather_data(data_file, station=station, start_time='2016-11-2 0:0',
                                                end_time='2017-2-28 23:0', batch_size=batch_size, mean=mean_train, std=std_train)
    return train_loader, valid_train_loader, valid_vld_loader, test_loader