code: func WriteCommand(conn goetty.IOSession, cmd string, args ...interface{}) error {
  	lenV := conn.GetAttr(lenScratch).([]byte)
  	numV := conn.GetAttr(lenScratch).([]byte)
  
  	return doWriteCommand(cmd, lenV, numV, conn.OutBuf(), args...)
  }
docs: // WriteCommand write redis command