docs: function strGetterMulti(that, collection, getMethod, method, keys, param) {
          var out, k, len;
          if (!keys) keys = that.constructor[collection];
          if ('undefined' === typeof param) {
              param = {};
          }
          out = {};
          if (J.isArray(keys)) {
              k = -1, len = keys.length;
              for ( ; ++k < len;) {
                  out[keys[k]] = that[getMethod](keys[k], param);
              }
          }
          else {
              for (k in keys) {
                  if (keys.hasOwnProperty(k)) {
                      out[k] = that[getMethod](k, param);
                  }
              }
          }
          return out;
      }