code: def parse_next(self, ptype, m):
          
          if self.transport.server_mode and (ptype == MSG_KEXGSS_INIT):
              return self._parse_kexgss_init(m)
          elif not self.transport.server_mode and (ptype == MSG_KEXGSS_HOSTKEY):
              return self._parse_kexgss_hostkey(m)
          elif self.transport.server_mode and (ptype == MSG_KEXGSS_CONTINUE):
              return self._parse_kexgss_continue(m)
          elif not self.transport.server_mode and (ptype == MSG_KEXGSS_COMPLETE):
              return self._parse_kexgss_complete(m)
          elif ptype == MSG_KEXGSS_ERROR:
              return self._parse_kexgss_error(m)
          msg = "GSS KexGroup1 asked to handle packet type {:d}"
          raise SSHException(msg.format(ptype))
docs: Parse the next packet.
  
          :param ptype: The (string) type of the incoming packet
          :param `.Message` m: The paket content