It would be pretty useful for me, however I couldn’t find anything about it.
@ElgerJP ? 
I have a Form_X and Form_X needs Slot_X and Slot_Y, is it possible to know, inside a custom action, what are the slots that Form_X needs? (I know I can only parse the yaml file, but I want to know if there is a class that I can access in rasa)
@ElgerJP please visit these video’s → https://youtu.be/U3an88fjFRc and https://youtu.be/md97kXT27Y0 for the generic idea. This can solve your issue.
@ElgerJP For validation of forms → https://youtu.be/CKn4ZBh9PpY
Honestly, I not got your idea but hopefully, it will solve you issue. Good Luck!
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