feat(parser): Add MenuFlexibleItem

src/parser/classes/menus/Menu.ts

@@ -9,13 +9,15 @@ import SegmentedLikeDislikeButtonView from '../SegmentedLikeDislikeButtonView.js
 export default class Menu extends YTNode {
   static type = 'Menu';
 
-  items: ObservedArray<YTNode>;
-  top_level_buttons: ObservedArray<Button | ButtonView | SegmentedLikeDislikeButtonView>;
-  label?: string;
+  public items: ObservedArray<YTNode>;
+  public flexible_items: ObservedArray<YTNode>;
+  public top_level_buttons: ObservedArray<Button | ButtonView | SegmentedLikeDislikeButtonView>;
+  public label?: string;
 
   constructor(data: RawNode) {
     super();
     this.items = Parser.parseArray(data.items);
+    this.flexible_items = Parser.parseArray(data.flexibleItems);
     this.top_level_buttons = Parser.parseArray(data.topLevelButtons, [ Button, ButtonView, SegmentedLikeDislikeButtonView ]);
 
     if (Reflect.has(data, 'accessibility') && Reflect.has(data.accessibility, 'accessibilityData')) {

src/parser/classes/menus/MenuFlexibleItem.ts

@@ -0,0 +1,20 @@
+import { Parser } from '../../index.js';
+import { YTNode } from '../../helpers.js';
+import type { RawNode } from '../../index.js';
+
+import Button from '../Button.js';
+import ButtonView from '../ButtonView.js';
+import MenuServiceItem from './MenuServiceItem.js';
+
+export default class MenuFlexibleItem extends YTNode {
+  static type = 'MenuFlexibleItem';
+
+  public menu_item: MenuServiceItem | null;
+  public top_level_button: ButtonView | Button | null;
+
+  constructor(data: RawNode) {
+    super();
+    this.menu_item = Parser.parseItem(data.menuItem, MenuServiceItem);
+    this.top_level_button = Parser.parseItem(data.topLevelButton, [ ButtonView, Button ]);
+  }
+}

src/parser/nodes.ts

@@ -228,6 +228,7 @@ export { default as MacroMarkersInfoItem } from './classes/MacroMarkersInfoItem.
 export { default as MacroMarkersList } from './classes/MacroMarkersList.js';
 export { default as MacroMarkersListItem } from './classes/MacroMarkersListItem.js';
 export { default as Menu } from './classes/menus/Menu.js';
+export { default as MenuFlexibleItem } from './classes/menus/MenuFlexibleItem.js';
 export { default as MenuNavigationItem } from './classes/menus/MenuNavigationItem.js';
 export { default as MenuPopup } from './classes/menus/MenuPopup.js';
 export { default as MenuServiceItem } from './classes/menus/MenuServiceItem.js';