docs: function(err, files, results) {
      if(err) {
        cb(err);
      } else {
        for(var i = 0; i < results.length; i++) {
          if(results[i] !== undefined && results[i].error === undefined && results[i].id !== undefined) {
            fixtures[results[i].id] = results[i];
          }
        }
        cb(undefined, fixtures);
      }
    }