Can I filter the json file 'image_info_test2017.json' ?

[tim4anker]

Hello, thanks for the great thing to filter the coco dataset. I would like to know that if I can filter the image_info_test2017.json ? I get into this error :
Loading json file...
Processing input json...
Traceback (most recent call last):
File "filter.py", line 171, in
cf.main(args)
File "filter.py", line 130, in main
self._process_segmentations()
File "filter.py", line 46, in _process_segmentations
for segmentation in self.coco['annotations']:
KeyError: 'annotations'