logger

type Logger interface {

	// Print will simply print the params
	Print(...interface{})

	// Print will simply print the params
	Println(...interface{})

	// Printf will be used for informational messages. These can be thought of
	// having an 'Info'-level in a structured logger.
	Printf(string, ...interface{})

	// Debugf is used for debugging messages, mostly for debugging goka itself.
	// It is turned off unless goka is initialized
	Debugf(string, ...interface{})

	// Panicf will be only called an unexpected programming error such as a type
	// assertion which should never fail. Regular errors will be returned out
	// from the library.
	Panicf(string, ...interface{})

	// PrefixedLogger returns a logger that prefixes all messages with passed prefix
	Prefix(string) Logger
}

type Prefixer interface {
	CurrentPrefix() string
	StackPrefix(prefix string) Prefixer
}