docs: function querySearch( query, single, embed, callback ) {
      var embd = '';
          if ( single ) {
          for ( var key in embed ) {
              if (  embed.hasOwnProperty(key) ) {
                  embd += '&embed[]=' + embed[key];
              }
          }
      }
  
      var url = apiBaseUrl + ( single ? endpoints['query']['single'] : endpoints['query']['multi'] ) + query + embd;
  
      fetch(url, function(result) {
          callback(result);
      });
  }