code: def each_page
        page = first_page
        yield page if block_given?
  
        until completed?
          page = page.next_page
          yield page if block_given?
        end
      end
docs: Iterates over all pages of the current sync
  
   @note Please Keep in Mind: Iterating fires a new request for each page
  
   @yield [Contentful::SyncPage]