code: function(path, data) {
          var normalized = normalizePath(null, path, data);
          if (normalized.isKeyword) {
            return 'templateData.keywords.' + path;
          } else if (isGlobalPath(path)) {
            return null;
          } else if (path === 'this' || path === '') {
            return '_parentView.context';
          } else {
            return '_parentView.context.' + path;
          }
        }
docs: Transform bindings from the current context to a context that can be evaluated within the view. Returns null if the path shouldn't be changed.  TODO: consider the addition of a prefix that would allow this method to return `path`.