TypeError: Expected bytes, got list

[z3742705z]

Hey @waspinator , thanks for this work. I have a problem about the decoding of RLE.
I set 'is_crowd' to 1 to make RLE format in shapes_to_coco.py. But I use MaskRCNN from facebookresearch and have a bug related to your program.

File "C:\Users\DTMLLUAdminUser\Anaconda3\envs\detectron2\lib\site-packages\pycocotools\mask.py", line 91, in decode
return _mask.decode([rleObjs])[:,:,0]
File "pycocotools_mask.pyx", line 146, in pycocotools._mask.decode
File "pycocotools_mask.pyx", line 128, in pycocotools._mask._frString
TypeError: Expected bytes, got list

do you have any idea or what should I do to finish this bug. Thank you.