How to use cookies.json?

[NoCrypt]

I export my cookies using cookie editor to ~/.cache/gdown/cookies.json
But failed with this error:

Traceback (most recent call last):
  File "/usr/local/bin/gdown", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/dist-packages/gdown/cli.py", line 160, in main
    resume=args.continue_,
  File "/usr/local/lib/python3.7/dist-packages/gdown/download.py", line 125, in download
    for k, v in cookies:
ValueError: too many values to unpack (expected 2)
Traceback (most recent call last):
  File "/usr/local/bin/gdown", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/dist-packages/gdown/cli.py", line 160, in main
    resume=args.continue_,
  File "/usr/local/lib/python3.7/dist-packages/gdown/download.py", line 125, in download
    for k, v in cookies:
ValueError: too many values to unpack (expected 2)

Now I'm wondering am I using this file right...?

[wkentaro]

It should be saved and used automatically, so not expected to be edited manually.