code: function parseSubFilters(subFilters, context) {
      subFilters.forEach(subFilter =>
          parseNode(
              subFilter,
              {
                  attribute: parseAttributePath,
                  filter: parseFilter,
                  rewriteTo: parseAttributePath
              },
              context
          )
      );
      return subFilters;
  }
docs: Parses attribute/filter of subFilters.
  
  @private