docs: add tool calling example in Tongyi chat model integration. (#20925)

**Description:** add tool calling example in Tongyi chat model
integration.
  **Issue:** None
  **Dependencies:** None

docs/docs/integrations/chat/tongyi.ipynb

@@ -142,11 +142,70 @@
    ]
   },
   {
-   "cell_type": "code",
+   "cell_type": "markdown",
-   "execution_count": null,
    "metadata": {},
-   "outputs": [],
+   "source": [
-   "source": []
+    "## Tool Calling\n",
+    "ChatTongyi supports tool calling API that lets you describe tools and their arguments, and have the model return a JSON object with a tool to invoke and the inputs to that tool."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "AIMessage(content='', additional_kwargs={'tool_calls': [{'function': {'name': 'get_current_weather', 'arguments': '{\"location\": \"San Francisco\"}'}, 'id': '', 'type': 'function'}]}, response_metadata={'model_name': 'qwen-turbo', 'finish_reason': 'tool_calls', 'request_id': 'dae79197-8780-9b7e-8c15-6a83e2a53534', 'token_usage': {'input_tokens': 229, 'output_tokens': 19, 'total_tokens': 248}}, id='run-9e06f837-582b-473b-bb1f-5e99a68ecc10-0', tool_calls=[{'name': 'get_current_weather', 'args': {'location': 'San Francisco'}, 'id': ''}])"
+      ]
+     },
+     "execution_count": 5,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "from langchain_community.chat_models.tongyi import ChatTongyi\n",
+    "from langchain_core.messages import HumanMessage, SystemMessage\n",
+    "\n",
+    "tools = [\n",
+    "    {\n",
+    "        \"type\": \"function\",\n",
+    "        \"function\": {\n",
+    "            \"name\": \"get_current_time\",\n",
+    "            \"description\": \"当你想知道现在的时间时非常有用。\",\n",
+    "            \"parameters\": {},\n",
+    "        },\n",
+    "    },\n",
+    "    {\n",
+    "        \"type\": \"function\",\n",
+    "        \"function\": {\n",
+    "            \"name\": \"get_current_weather\",\n",
+    "            \"description\": \"当你想查询指定城市的天气时非常有用。\",\n",
+    "            \"parameters\": {\n",
+    "                \"type\": \"object\",\n",
+    "                \"properties\": {\n",
+    "                    \"location\": {\n",
+    "                        \"type\": \"string\",\n",
+    "                        \"description\": \"城市或县区，比如北京市、杭州市、余杭区等。\",\n",
+    "                    }\n",
+    "                },\n",
+    "            },\n",
+    "            \"required\": [\"location\"],\n",
+    "        },\n",
+    "    },\n",
+    "]\n",
+    "\n",
+    "messages = [\n",
+    "    SystemMessage(content=\"You are a helpful assistant.\"),\n",
+    "    HumanMessage(content=\"What is the weather like in San Francisco?\"),\n",
+    "]\n",
+    "chatLLM = ChatTongyi()\n",
+    "llm_kwargs = {\"tools\": tools, \"result_format\": \"message\"}\n",
+    "ai_message = chatLLM.bind(**llm_kwargs).invoke(messages)\n",
+    "ai_message"
+   ]
   }
  ],
  "metadata": {