def METHOD_NAME(settings_dropna_true):
    request = DwdObservationRequest(
        parameter=[
            "temperature_air",
            "precipitation",
        ],
        resolution="minute_10",
        start_date="2021-01-01",
        end_date="2021-12-31",
        settings=settings_dropna_true,
    ).filter_by_rank(latlon=(49.19780976647141, 8.135207205143768), rank=20)
    values = next(request.values.query())
    assert values.df.shape[0] == 51971