old_contents: import os
  from aiotg import Bot
  
  bot = Bot(os.environ["API_TOKEN"])
  
  
  @bot.command("whoami")
  def whoami(chat, match):
      return chat.reply(chat.sender["id"])
  
  
  if __name__ == "__main__":
      bot.run(debug=True)
  
new_contents: import os
  from aiotg import Bot
  
  bot = Bot(api_token="API_TOKEN")
  
  
  @bot.command("whoami")
  def whoami(chat, match):
      return chat.reply(chat.sender["id"])
  
  
  if __name__ == "__main__":
      bot.run(debug=True)
  
subject: Update whoami.py