log

type Field = zapcore.Field

type Fields = []Field

type Level = zapcore.Level

type Logger interface {
	WithField(key string, value interface{}) Logger
	WithFields(fields Fields) Logger
	WithError(err error) Logger
	WithTracing(ctx context.Context) Logger

	Debugf(format string, args ...interface{})
	Infof(format string, args ...interface{})
	Warnf(format string, args ...interface{})
	Warningf(format string, args ...interface{})
	Errorf(format string, args ...interface{})
	Fatalf(format string, args ...interface{})
	Panicf(format string, args ...interface{})

	Debug(args ...interface{})
	Info(args ...interface{})
	Warn(args ...interface{})
	Warning(args ...interface{})
	Error(args ...interface{})
	Fatal(args ...interface{})
	Panic(args ...interface{})

	CheckWrite(lvl Level, msg string, fields ...Field)
	Sync() error
}