docs: def do_unmute(self, sender, body, args):
          """Unmutes the chatroom for a user"""
          if sender.get('MUTED'):
              sender['MUTED'] = False
              self.broadcast('%s has unmuted this chatroom' % (sender['NICK'],))
              for msg in sender.get('QUEUED_MESSAGES', []):
                  self.send_message(msg, sender)
              sender['QUEUED_MESSAGES'] = []
          else:
              self.send_message('you were not muted', sender)