code: def indexed_page_item_view!(indexed_page_item_view)
        attribs = {}
        indexed_page_item_view.each_pair {|k,v| attribs[camel_case(k)] = v.to_s}
        @nbuild[NS_EWS_MESSAGES].IndexedPageItemView(attribs)
      end
docs: Build the IndexedPageItemView element
   @see http://msdn.microsoft.com/en-us/library/exchange/aa563549(v=exchg.150).aspx
   @todo needs peer check