I recently coded a simple telegram bot using the python-telegram-bot library, and deployed this bot on Heroku. Now i'm looking for an effective way to make the bot persistent, allowing it to store Bot_data and user_data between runs. I took a look at the persistence classes the library offers and i understood that PicklePersistence would not work with heroku's "ephemeral" hard drive. My question is, how can i implement the bot's persistence to make it work on heroku? Should i give up storing the bot_data and change the design to rely on an external database where to store the data i need?