code: def body(self):
      order = ["cont"]
      string = b""
      for key in order:
          string += getattr(self, key).toStringPacket()
  
      self.setBody(string)
      return self._body
  
imports: from mindsdb.api.mysql.mysql_proxy.data_types.mysql_packet import Packet
  from mindsdb.api.mysql.mysql_proxy.data_types.mysql_datum import Datum
label_desc: Use image node_id 2 for calling the FastAuthFail obj's underlying member method code with example usage: obj.body() and returns: self