driver

type Driver interface {
	// Retrieve the name of current driver, like 'default', 'zap', 'logrus' ...
	Name() string

	// Print responsible of printing the standard Log
	Print(r *core.Record)

	// Retrieve log level of the specified logger,
	// it should return the lowest Level that could be print,
	// which can help invoker to decide whether prepare print or not.
	GetLevel(logger string) core.Level
}