func (l Log) Debug(format string, args ...interface{}) {
	l.sugar.Debugf(format, args...)
}
Debug prints formatted debug level log message.
package log
import (
	"fmt"
	"runtime/debug"
	"time"
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)
var NilLogger Log
type Log struct {
	logger *zap.Logger
	sugar  *zap.SugaredLogger
	lvl    *zap.AtomicLevel
}
func (l Log) Info(format string, args ...interface{}) {
	l.sugar.Infof(format, args...)
}