class Scraper:
    async def run_scraper(self):
        proxy_urls = process_proxy_file('proxy_list.txt')
        proxy_configuration = ProxyConfiguration(proxy_urls=proxy_urls)
        crawler = PlaywrightCrawler(proxy_configuration=proxy_configuration, headless=False, browser_type='chromium')

        @crawler.router.default_handler
        async def request_handler(context: PlaywrightCrawlingContext) -> None:
            print('Handling request...')
            context.request.state(RequestState.UNPROCESSED)

            # Scrape logic here
            # Return scraped data if needed

        request = Request.from_url('https://crawlee.dev')
        await crawler.run([request])
        return "Example Scraped Data"