code: function (settings) {
          settings = {
            border: 1,
            padding: 20,
            layout: 'flex',
            pack: "center",
            align: "center",
            containerCls: 'panel',
            autoScroll: true,
            buttons: { type: "button", text: "Ok", action: "ok" },
            items: {
              type: "label",
              multiline: true,
              maxWidth: 500,
              maxHeight: 200
            }
          };
  
          this._super(settings);
        }
docs: Constructs a instance with the specified settings.
  
  @constructor
  @param {Object} settings Name/value object with settings.