code: func (o CommandCode) IsQuiet() bool {
  	switch o {
  	case GETQ,
  		GETKQ,
  		SETQ,
  		ADDQ,
  		REPLACEQ,
  		DELETEQ,
  		INCREMENTQ,
  		DECREMENTQ,
  		QUITQ,
  		FLUSHQ,
  		APPENDQ,
  		PREPENDQ,
  		RSETQ,
  		RAPPENDQ,
  		RPREPENDQ,
  		RDELETEQ,
  		RINCRQ,
  		RDECRQ:
  		return true
  	}
  	return false
  }
docs: // Return true if a command is a "quiet" command.