@op(out=Out(CustomTripDataFrame))
def load_custom_trip_dataframe() -> DataFrame:
    return read_csv(script_relative_path('./ebike_trips.csv'), parse_dates=['start_time', 'end_time'], date_parser=(lambda x: datetime.strptime(x, '%Y-%m-%d %H:%M:%S.%f')), dtype={'color': 'category'})
@op(out=Out(CustomTripDataFrame))
def load_custom_trip_dataframe() -> DataFrame:
    return read_csv(script_relative_path('./ebike_trips.csv'), parse_dates=['start_time', 'end_time'], date_parser=(lambda x: datetime.strptime(x, '%Y-%m-%d %H:%M:%S.%f')), dtype={'color': 'category'})