<system-data-structure>
   <asset type="page" identifier="frame_file" label="Frame" required="true"/>
   <text identifier="results_per_page" label="Results per page" required="true"/>
   <text identifier="result_template" label="Result style" multi-line="true" required="true"/>
   <text identifier="noresults_template" label="No Results Header" multi-line="true" required="true"/>
   <text identifier="header_template" label="Results Text" multi-line="true" required="true"/>
   <text identifier="next_page_template" label="Next Page Link Text" multi-line="true" required="true"/>
   <text identifier="prev_page_template" label="Previous Page Link Text" multi-line="true" required="true"/>
   <asset type="page" identifier="file" label="Index blocks" 
multiple="true" required="true"/>
   <text identifier="log_file" label="Log file" required="false"/>
   <text identifier="log_size" label="Log size"/>
</system-data-structure>

