Fixed foundry sample issue (#403)

Co-authored-by: Giles Odigwe <gilesodigwe@microsoft.com>

python/samples/getting_started/agents/foundry/foundry_with_existing_agent.py

@@ -24,26 +24,27 @@ async def main() -> None:
     print("=== Foundry Chat Client with Existing Agent ===")
 
     # Create the client
-    client = AIProjectClient(endpoint=os.environ["FOUNDRY_PROJECT_ENDPOINT"], credential=AzureCliCredential())
+    async with AIProjectClient(
+        endpoint=os.environ["FOUNDRY_PROJECT_ENDPOINT"], credential=AzureCliCredential()
+    ) as client:
+        # Create an agent that will persist
+        created_agent = await client.agents.create_agent(
+            model=os.environ["FOUNDRY_MODEL_DEPLOYMENT_NAME"], name="WeatherAgent"
+        )
 
-    # Create an agent that will persist
-    created_agent = await client.agents.create_agent(
-        model=os.environ["FOUNDRY_MODEL_DEPLOYMENT_NAME"], name="WeatherAgent"
-    )
-
-    try:
-        async with ChatClientAgent(
-            # passing in the client is optional here, so if you take the agent_id from the portal
-            # you can use it directly without the two lines above.
-            chat_client=FoundryChatClient(client=client, agent_id=created_agent.id),
-            instructions="You are a helpful weather agent.",
-            tools=get_weather,
-        ) as agent:
-            result = await agent.run("What's the weather like in Tokyo?")
-            print(f"Result: {result}\n")
-    finally:
-        # Clean up the agent manually
-        await client.agents.delete_agent(created_agent.id)
+        try:
+            async with ChatClientAgent(
+                # passing in the client is optional here, so if you take the agent_id from the portal
+                # you can use it directly without the two lines above.
+                chat_client=FoundryChatClient(client=client, agent_id=created_agent.id),
+                instructions="You are a helpful weather agent.",
+                tools=get_weather,
+            ) as agent:
+                result = await agent.run("What's the weather like in Tokyo?")
+                print(f"Result: {result}\n")
+        finally:
+            # Clean up the agent manually
+            await client.agents.delete_agent(created_agent.id)
 
 
 if __name__ == "__main__":