chore: import upstream snapshot with attribution

tests/test_arun_many.py

@@ -0,0 +1,42 @@
+"""
+Test example for multiple crawler configs feature
+"""
+import asyncio
+import sys
+from pathlib import Path
+
+# Add parent directory to path for imports
+sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from crawl4ai import AsyncWebCrawler, CrawlerRunConfig, CacheMode
+from crawl4ai.processors.pdf import PDFContentScrapingStrategy
+
+
+async def test_run_many():
+    default_config = CrawlerRunConfig(
+        cache_mode=CacheMode.BYPASS,
+        # scraping_strategy=PDFContentScrapingStrategy()
+    )
+    
+    test_urls = [
+        # "https://blog.python.org/",  # Blog URL  
+        "https://www.python.org/",  # Generic HTTPS page
+        "https://www.kidocode.com/",  # Generic HTTPS page
+        "https://www.example.com/",  # Generic HTTPS page
+        # "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf",
+    ]
+    
+    async with AsyncWebCrawler() as crawler:
+        # Single config - traditional usage still works
+        print("Test 1: Single config (backwards compatible)")
+        result = await crawler.arun_many(
+            urls=test_urls[:2],
+            config=default_config
+        )
+        print(f"Crawled {len(result)} URLs with single config\n")
+        for item in result:
+            print(f"  {item.url} -> {item.status_code}")
+        
+
+if __name__ == "__main__":
+    asyncio.run(test_run_many())