xml.TiVoContainer do

xml.Details do
  xml.Title container.title
  xml.ContentType container.content_type
  xml.SourceFormat container.source_format
  xml.TotalItems children.size
end

paginated_children = children[item_start, item_count]
paginated_children.each do |child|
  builder :_container, layout: false, locals: { xml: xml, container: child }
end

xml.ItemStart item_start
xml.ItemCount paginated_children.size

end