Deleted messages restoring from supergroup in Telegram (from Recent Actions menu).

You have only 48 hours after deleting and you should be admin (or owner) of group.

• Update .env:
  • Get your API_ID and API_HASH according to this instruction
  • Channel ID could be found by @RawDataBot (just add to group)
• Run script — all media will be downloaded to media directory, all messages will be saved in dump.json