chore: import upstream snapshot with attribution

examples/model_providers/any_llm_auto.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+import asyncio
+
+from pydantic import BaseModel
+
+from agents import Agent, ModelSettings, Runner, function_tool, set_tracing_disabled
+
+"""This example uses the built-in any-llm routing through OpenRouter.
+
+Set OPENROUTER_API_KEY before running it.
+"""
+
+set_tracing_disabled(disabled=True)
+
+
+@function_tool
+def get_weather(city: str):
+    print(f"[debug] getting weather for {city}")
+    return f"The weather in {city} is sunny."
+
+
+class Result(BaseModel):
+    output_text: str
+    tool_results: list[str]
+
+
+async def main():
+    agent = Agent(
+        name="Assistant",
+        instructions="You only respond in haikus.",
+        model="any-llm/openrouter/openai/gpt-5.4-mini",
+        tools=[get_weather],
+        model_settings=ModelSettings(tool_choice="required"),
+        output_type=Result,
+    )
+
+    result = await Runner.run(agent, "What's the weather in Tokyo?")
+    print(result.final_output)
+
+
+if __name__ == "__main__":
+    import os
+
+    if os.getenv("OPENROUTER_API_KEY") is None:
+        raise ValueError(
+            "OPENROUTER_API_KEY is not set. Please set the environment variable and try again."
+        )
+
+    asyncio.run(main())