logger.go
func (dl *DefaultLogger) Debug(message string, params ...interface{}) {
	dl.logger.Debugf(fmt.Sprintf("%s %s", caller(), message), params...)
}
func (dl *DefaultLogger) Debug(message string, params ...interface{}) {
	dl.logger.Debugf(fmt.Sprintf("%s %s", caller(), message), params...)
}
func ( dl * DefaultLogger ) Debug ( message string , params ... interface { } ) { dl . logger . Debugf ( fmt . Sprintf ( " " , caller ( ) , message ) , params ... ) }
// Debug formats a given message according to given params to log with level Debug.
Debug formats a given message according to given params to log with level Debug .