code: function (id, callback) {
      var idIsArr = Array.isArray(id);
  
      if (!id || (idIsArr && id.length === 0)) {
        return _handleErr('Id required for id API call', callback);
      }
  
      // If an array of Id's was passed, generate a comma delimited string for
      // the query string.
      if (idIsArr) {
        id = id.join();
      }
  
      return this._request({
        api: 'gifs',
        query: {
          ids: id
        }
      }, callback);
    }
docs: Search all Giphy gifs for a single Id or an array of Id's
  
  @param id {String} - Single Giphy gif string Id or array of string Id's
  @param callback