Does this code only work for data with ground true？

[dizzyrue]

streamer = DroneImageStreamer(
    image_folder="data/query/",
    has_gt=True,
    logger=logging.getLogger("%s.DroneImageStreamer" % __name__),  # noqa
) 

I change the has_gt=False,then occur:
visual_localization/src/svl/localization/pipeline.py", line 126, in run_on_image lat=drone_image.geo_point.latitude, AttributeError: 'NoneType' object has no attribute 'latitude'.