chore: import upstream snapshot with attribution

examples/basic/remote_pdf.py

@@ -0,0 +1,31 @@
+import asyncio
+
+from agents import Agent, Runner
+
+URL = "https://www.berkshirehathaway.com/letters/2024ltr.pdf"
+
+
+async def main():
+    agent = Agent(
+        name="Assistant",
+        instructions="You are a helpful assistant.",
+    )
+
+    result = await Runner.run(
+        agent,
+        [
+            {
+                "role": "user",
+                "content": [{"type": "input_file", "file_url": URL}],
+            },
+            {
+                "role": "user",
+                "content": "Can you summarize the letter?",
+            },
+        ],
+    )
+    print(result.final_output)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())