func Errorln(args ...interface{}) {
	logger.Errorln(args...)
}
Errorln logs to the ERROR log. Arguments are handled in the manner of fmt.Println.
package grpclog
import "os"
var logger = newLoggerV2()
func V(l int) bool {
	return logger.V(l)
}
func Info(args ...interface{}) {
	logger.Info(args...)
}
func Infof(format string, args ...interface{}) {
	logger.Infof(format, args...)
}
func Infoln(args ...interface{}) {
	logger.Infoln(args...)
}
func Warning(args ...interface{}) {
	logger.Warning(args...)
}
func Warningf(format string, args ...interface{}) {
	logger.Warningf(format, args...)
}
func Warningln(args ...interface{}) {
	logger.Warningln(args...)
}
func Error(args ...interface{}) {
	logger.Error(args...)
}
func Errorf(format string, args ...interface{}) {
	logger.Errorf(format, args...)
}