code: def insertmap(self,xmltext,lfnpfn_dict):
      
  
      pmsg = cPickle.dumps(lfnpfn_dict)
  
      msg = "INSERTMAP\0" + xmltext + "\0" + pmsg + "\0"
      self.sfile.write(msg)
  
      ret, output = self.__response__()
      reply = str(output[0])
  
      if ret:
        msg = "Error executing insert on server %d:%s" % (ret, reply)
        raise LDBDClientException, msg
  
      return reply
docs: Insert the LIGO_LW metadata in the xmltext string into the database.
  
      @return: message received (may be empty) from LDBD Server as a string