code: def setup(self, length=0, seq=0, body=None):
      self.load_from_params(length=length, seq=seq, body=body)
  
imports: import struct
  from mindsdb.api.mysql.mysql_proxy.libs.constants.mysql import MAX_PACKET_SIZE
  from mindsdb.utilities import log
label_desc: Use image node_id 2 for calling the Packet obj's underlying member method code with example usage: obj.setup(length, seq, body) without return types