Method with

src/material/tree/testing/node-harness.ts:29–31

* Gets a `HarnessPredicate` that can be used to search for a tree node with specific attributes. * @param options Options for narrowing the search * @return a `HarnessPredicate` configured with the given options.

(options: TreeNodeHarnessFilters = {})

   * @return a `HarnessPredicate` configured with the given options.
   */
  static with(options: TreeNodeHarnessFilters = {}): HarnessPredicate<MatTreeNodeHarness> {
    return getNodePredicate(MatTreeNodeHarness, options);
  }

  /** Whether the tree node is expanded. */
  async isExpanded(): Promise<boolean> {