code: function(obj, functName, attr) {
      if (d4.isNotFunction(attr)) {
        var prop = '$' + functName;
        readOnlyProp(obj, prop, functName, attr);
      }
    }
docs: In an effort to make the API more succient we store the last known proplerty of an accessor with the same name but prepended with a $ character. This allows the developer to do something like this: chart.width(500) chart.$width //500