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							- package mssql
 
- import (
 
- 	"log"
 
- )
 
- type Logger interface {
 
- 	Printf(format string, v ...interface{})
 
- 	Println(v ...interface{})
 
- }
 
- type optionalLogger struct {
 
- 	logger Logger
 
- }
 
- func (o optionalLogger) Printf(format string, v ...interface{}) {
 
- 	if o.logger != nil {
 
- 		o.logger.Printf(format, v...)
 
- 	} else {
 
- 		log.Printf(format, v...)
 
- 	}
 
- }
 
- func (o optionalLogger) Println(v ...interface{}) {
 
- 	if o.logger != nil {
 
- 		o.logger.Println(v...)
 
- 	} else {
 
- 		log.Println(v...)
 
- 	}
 
- }
 
 
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