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Refresh({refreshing:$$this.isRefreshing,builder:HeaderRefreshComponentBuilder()}){List(){}.onScrollIndex((first:number)>{console.info(first.toString());}).width('100%').height('100%').padding({left:10,right:10,bottom:15}).alignListItem(ListItemAlign.Start).scrollBar(BarState.Off)}.pullToRefresh(true).refreshOffset(64).layoutWeight(1).onRefreshing(()>{})