code: function _convertStringIfTrue(original) {
      var str;
      if (original && typeof original === "string") {
          str = original.toLowerCase().trim();
          return (str === "true" || str === "false") ? (str === "true") : original;
      }
      return original;
  }
docs: If a string is "true" "TRUE", or "  TrUE" convert to boolean type else
  leave as is