log

type Logger interface {
	// With returns a logger based off the root logger and decorates it with
	// the given context and arguments.
	With(ctx context.Context, args ...interface{}) Logger

	// Debug uses fmt.Sprint to construct and log a message at DEBUG level
	Debug(args ...interface{})
	// Info uses fmt.Sprint to construct and log a message at INFO level
	Info(args ...interface{})
	// Error uses fmt.Sprint to construct and log a message at ERROR level
	Error(args ...interface{})
	// Warn uses fmt.Sprint to construct and log a message at WARN level
	Warn(args ...interface{})
	// Panic uses fmt.Sprint to construct and log a message at Panic level
	Panic(args ...interface{})

	// Debugf uses fmt.Sprintf to construct and log a message at DEBUG level
	Debugf(format string, args ...interface{})
	// Infof uses fmt.Sprintf to construct and log a message at INFO level
	Infof(format string, args ...interface{})
	// Warnf uses fmt.Sprintf to construct and log a message at WARN level
	Warnf(format string, args ...interface{})
	// Errorf uses fmt.Sprintf to construct and log a message at ERROR level
	Errorf(format string, args ...interface{})
	// Panicf uses fmt.Sprintf to construct and log a message at Panic level
	Panicf(format string, args ...interface{})
}