<!ELEMENT gsa-template (<header>?,
     (<item-descriptor> | <add-item> | <update-item> | <print-item> | <remove-item> |
     <transaction> | development-line | <query-items> | <remove-all-items> |
     <export-items> | <import-items> | <print-ddl> | <dump-caches> | <load-items>)*)>

The <gsa-template> tag is the top-level tag in a repository definition file.