docs: public Map<String, Map<String, String>> getReadPropertiesSearch() {
  
          if (m_propertiesSearch == null) {
              // create lazy map only on demand
              m_propertiesSearch = CmsCollectionsGenericWrapper.createLazyMap(
                  new CmsResourcePropertyLoaderTransformer(true));
          }
          return m_propertiesSearch;
      }