Method _updateCachedData

src/cdk/tree/tree.ts:1117–1119

(flattenedNodes: readonly T[])

  }

  private _updateCachedData(flattenedNodes: readonly T[]) {
    this._flattenedNodes.next(flattenedNodes);
  }

  private _updateKeyManagerItems(flattenedNodes: readonly T[]) {
    this._keyManagerNodes.next(flattenedNodes);