code: function WorkingSetView($container, paneId) {
          var id = "working-set-list-" + paneId;
  
          this.$header = null;
          this.$openFilesList = null;
          this.$container = $container;
          this.$el = $container.append(Mustache.render(paneListTemplate, _.extend({id: id}, Strings))).find("#" + id);
          this.suppressSortRedraw = false;
          this.paneId = paneId;
  
          this.init();
      }
docs: /*
  WorkingSetView constructor
  @constructor
  @param {!jQuery} $container - owning container
  @param {!string} paneId - paneId of this view pertains to