docs: function extraFilters(options) {
          if (!options.staticPages && !options.status) {
              return null;
          }
  
          let filter = null;
  
          // CASE: "staticPages" is passed
          if (options.staticPages && options.staticPages !== 'all') {
              // CASE: convert string true/false to boolean
              if (!_.isBoolean(options.staticPages)) {
                  options.staticPages = _.includes(['true', '1'], options.staticPages);
              }
  
              filter = `page:${options.staticPages}`;
          } else if (options.staticPages === 'all') {
              filter = 'page:[true, false]';
          }
  
          // CASE: "status" is passed, combine filters
          if (options.status && options.status !== 'all') {
              options.status = _.includes(ALL_STATUSES, options.status) ? options.status : 'published';
  
              if (!filter) {
                  filter = `status:${options.status}`;
              } else {
                  filter = `${filter}+status:${options.status}`;
              }
          } else if (options.status === 'all') {
              if (!filter) {
                  filter = `status:[${ALL_STATUSES}]`;
              } else {
                  filter = `${filter}+status:[${ALL_STATUSES}]`;
              }
          }
  
          delete options.status;
          delete options.staticPages;
          return filter;
      }