new_contents: @bot.message_handler(commands=['feedback', 'sendfeedback'])
  def send_feedbackz(message):
    userid = message.from_user.id
    banlist = redisserver.sismember('zigzag_banlist', '{}'.format(userid))
    if banlist:
      return
    if userid not in messanger_list:
      bot.reply_to(message, MESSANGER_JOIN_MSG, parse_mode="Markdown")
      messanger_list.append(userid)
      return
  
subject: Create feedback.py