Method with

src/material/table/testing/table-harness.ts:46–51

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

(
    this: ComponentHarnessConstructor<T>,
    options: TableHarnessFilters = {},
  )

   * @return a `HarnessPredicate` configured with the given options.
   */
  static with<T extends MatTableHarness>(
    this: ComponentHarnessConstructor<T>,
    options: TableHarnessFilters = {},
  ): HarnessPredicate<T> {
    return new HarnessPredicate(this, options);
  }

  /** Gets all the header rows in a table. */
  async getHeaderRows(filter: RowHarnessFilters = {}): Promise<MatHeaderRowHarness[]> {