Function handler

tests/async/test_page_add_locator_handler.py:32–38

(locator: Locator)

    original_locator = page.get_by_text("This interstitial covers the button")

    async def handler(locator: Locator) -> None:
        assert locator == original_locator
        nonlocal before_count
        nonlocal after_count
        before_count += 1
        await page.locator("#close").click()
        after_count += 1

    await page.add_locator_handler(original_locator, handler)