code: def add_reference_sample_indexes(portal):
      
      logger.info("Adding reference sample indexes")
  
      add_index(portal, catalog_id="bika_catalog",
                index_name="getSupportedServices",
                index_attribute="getSupportedServices",
                index_metatype="KeywordIndex")
  
      add_index(portal, catalog_id="bika_catalog",
                index_name="getBlank",
                index_attribute="getBlank",
                index_metatype="BooleanIndex")
  
      add_index(portal, catalog_id="bika_catalog",
                index_name="isValid",
                index_attribute="isValid",
                index_metatype="BooleanIndex")
docs: Adds the indexes for partitioning