[QUESTION] Difference between key_cls and label

[light42]

When I trained KIE with my own custom annotation created by ppocrlabel, it failed because the dictionary file lacked label key. So I proceed to insert the label key with it's value copied directly from key_cls.

So my question now is:

1. Am I doing it right by copying key_cls?
2. What's the difference between key_cls and label?
3. And why label doesn't automatically provided by ppocrlabel when it's actually required for training?

[rubensanchezrivero]

is there any insight here