What kind of feature are you missing? Where do you notice a shortcoming of PTB?
We can save some code duplication by extracting the de_json logic of classes like PaidMedia or ChatMember. Ideally this should go into TelegramObject so we can easily call it.
Describe the solution you'd like
#4334 (comment)
Describe alternatives you've considered
keep doing what we do right now
Additional context
No response