private byte[] Serialize(RadixTreePageBackingObject backingObject) { var header = new RadixTreeNodesPageHeader(); var page = new Page(_pageManager, backingObject.PageIndex, new byte[_pageManager.PageSize]); var items = backingObject.Items.Select(item => { if (item is byte[] bytes) { return(bytes); } if (item == null) { return(new byte[0]); } return(GetNodeBytes((IRadixTreeNode)item, 0)); }).ToList(); PageFormatter.FormatVariableSizeItemsPage(page, header, items); return(page.Content); }