code: func newFragment(path, index, field, view string, shard uint64) *fragment {
  	return &fragment{
  		path:      path,
  		index:     index,
  		field:     field,
  		view:      view,
  		shard:     shard,
  		CacheType: DefaultCacheType,
  		CacheSize: DefaultCacheSize,
  
  		Logger: logger.NopLogger,
  		MaxOpN: defaultFragmentMaxOpN,
  
  		stats: stats.NopStatsClient,
  	}
  }
docs: // newFragment returns a new instance of Fragment.