chore: import upstream snapshot with attribution

docs/en/documentation/getting-started/quickstart/python/adk/quickstart.py

@@ -0,0 +1,57 @@
+# [START quickstart]
+import asyncio
+
+from google.adk import Agent
+from google.adk.apps import App
+from google.adk.runners import InMemoryRunner
+from google.adk.tools.toolbox_toolset import ToolboxToolset
+from google.genai.types import Content, Part
+
+prompt = """
+You're a helpful hotel assistant. You handle hotel searching, booking and
+cancellations. When the user searches for a hotel, mention it's name, id,
+location and price tier. Always mention hotel ids while performing any
+searches. This is very important for any operations. For any bookings or
+cancellations, please provide the appropriate confirmation. Be sure to
+update checkin or checkout dates if mentioned by the user.
+Don't ask for confirmations from the user.
+"""
+
+# TODO(developer): update the TOOLBOX_URL to your toolbox endpoint
+toolset = ToolboxToolset(
+    server_url="http://127.0.0.1:5000",
+)
+
+root_agent = Agent(
+    name='hotel_assistant',
+    model='gemini-2.5-flash',
+    instruction=prompt,
+    tools=[toolset],
+)
+
+app = App(root_agent=root_agent, name="my_agent")
+# [END quickstart]
+
+queries = [
+    "Find hotels in Basel with Basel in its name.",
+    "Can you book the Hilton Basel for me?",
+    "Oh wait, this is too expensive. Please cancel it and book the Hyatt Regency instead.",
+    "My check in dates would be from April 10, 2024 to April 19, 2024.",
+]
+
+async def main():
+    runner = InMemoryRunner(app=app)
+    session = await runner.session_service.create_session(
+        app_name=app.name, user_id="test_user"
+    )
+
+    for query in queries:
+        print(f"\nUser: {query}")
+        user_message = Content(parts=[Part.from_text(text=query)])
+
+        async for event in runner.run_async(user_id="test_user", session_id=session.id, new_message=user_message):
+            if event.is_final_response() and event.content and event.content.parts:
+                print(f"Agent: {event.content.parts[0].text}")
+
+if __name__ == "__main__":
+    asyncio.run(main())