diff --git a/chapter05/02_output_messages.ipynb b/chapter05/02_output_messages.ipynb
index 49c99d3..e4c2ea3 100644
--- a/chapter05/02_output_messages.ipynb
+++ b/chapter05/02_output_messages.ipynb
@@ -6,8 +6,8 @@
    "metadata": {
     "collapsed": true,
     "ExecuteTime": {
-     "end_time": "2026-08-15T16:12:20.756187Z",
-     "start_time": "2026-08-15T16:12:20.180591Z"
+     "end_time": "2026-08-15T16:26:22.066409Z",
+     "start_time": "2026-08-15T16:26:22.048493Z"
     }
    },
    "source": [
@@ -21,20 +21,18 @@
     "\n",
     "load_dotenv(override=True)\n",
     "\n",
-    "llm = init_chat_model(\n",
-    "    model=\"openai:qwen3.6-flash\",\n",
-    "    base_url=os.getenv(\"BASE_URL\"),\n",
-    "    api_key=os.getenv(\"API_KEY\")\n",
-    ")"
+    "from lg_common import get_llm\n",
+    "\n",
+    "llm = get_llm()"
    ],
    "outputs": [],
-   "execution_count": 1
+   "execution_count": 9
   },
   {
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2026-08-15T16:12:20.764257Z",
-     "start_time": "2026-08-15T16:12:20.757920Z"
+     "end_time": "2026-08-15T16:26:22.082532Z",
+     "start_time": "2026-08-15T16:26:22.075508Z"
     }
    },
    "cell_type": "code",
@@ -47,13 +45,13 @@
    ],
    "id": "96219f0dc368b2f4",
    "outputs": [],
-   "execution_count": 2
+   "execution_count": 10
   },
   {
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2026-08-15T16:12:20.769343Z",
-     "start_time": "2026-08-15T16:12:20.764859Z"
+     "end_time": "2026-08-15T16:26:22.092905Z",
+     "start_time": "2026-08-15T16:26:22.084075Z"
     }
    },
    "cell_type": "code",
@@ -69,13 +67,13 @@
    ],
    "id": "fb99823e99a8e5ed",
    "outputs": [],
-   "execution_count": 3
+   "execution_count": 11
   },
   {
    "metadata": {
     "ExecuteTime": {
-     "end_time": "2026-08-15T16:12:28.554444Z",
-     "start_time": "2026-08-15T16:12:20.769732Z"
+     "end_time": "2026-08-15T16:26:26.324837Z",
+     "start_time": "2026-08-15T16:26:22.093863Z"
     }
    },
    "cell_type": "code",
@@ -88,8 +86,8 @@
     "        },\n",
     "        stream_mode=[\"values\", \"messages\"],\n",
     "):\n",
-    "    print(\"=\" * 50)\n",
-    "    rp(chunk)"
+    "    # print(\"=\" * 50)\n",
+    "    print(chunk)"
    ],
    "id": "a16a8c41b51bf1f2",
    "outputs": [
@@ -97,13548 +95,176 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "==================================================\n"
+      "('values', {'messages': [HumanMessage(content='你好!', additional_kwargs={}, response_metadata={}, id='32504bc0-1ccf-4939-9610-5ca8a5344c7e')]})\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
+      "('messages', (AIMessageChunk(content='', additional_kwargs={}, response_metadata={'model_provider': 'openai'}, id='lc_run--01a0063e-ec10-7c20-8b2d-d79db2b2be7d', tool_calls=[], invalid_tool_calls=[], tool_call_chunks=[]), {'ls_integration': 'langchain_chat_model', 'langgraph_step': 1, 'langgraph_node': 'llm_node', 'langgraph_triggers': ('branch:to:llm_node',), 'langgraph_path': ('__pregel_pull', 'llm_node'), 'langgraph_checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'checkpoint_ns': 'llm_node:92d8405f-9b15-01d8-2b0b-adba236ae3de', 'ls_provider': 'openai', 'ls_model_name': 'qwen3.6-flash', 'ls_model_type': 'chat', 'ls_temperature': None, 'lc_versions': {'langchain-core': '1.5.2', 'langchain': '1.3.14', 'langchain-openai': '1.4.1'}}))\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_provider'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'openai'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_provider'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'openai'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_provider'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'openai'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_provider'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'openai'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_provider'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'openai'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_provider'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'openai'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_provider'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'openai'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'lc_versions'</span>: <span style=\"font-weight: bold\">{</span><span style=\"color: #008000; text-decoration-color: #008000\">'langchain-core'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.5.2'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.3.14'</span>, <span style=\"color: #008000; text-decoration-color: #008000\">'langchain-openai'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'1.4.1'</span><span style=\"font-weight: bold\">}</span>\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "        <span style=\"font-weight: bold\">}</span>\n",
-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"color: #008000; text-decoration-color: #008000\">'messages'</span>,\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_temperature'</span>: <span style=\"color: #800080; text-decoration-color: #800080; font-style: italic\">None</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_name'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'qwen3.6-flash'</span>,\n",
-       "            <span style=\"color: #008000; text-decoration-color: #008000\">'ls_model_type'</span>: <span style=\"color: #008000; text-decoration-color: #008000\">'chat'</span>,\n",
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-       "    <span style=\"font-weight: bold\">)</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
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-       "            <span style=\"font-weight: bold\">)</span>\n",
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-       "    <span style=\"font-weight: bold\">}</span>\n",
-       "<span style=\"font-weight: bold\">)</span>\n",
-       "</pre>\n"
-      ]
-     },
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     }
    ],
-   "execution_count": 4
+   "execution_count": 12
   }
  ],
  "metadata": {
diff --git a/chapter05/03.py b/chapter05/03.py
new file mode 100644
index 0000000..b215c15
--- /dev/null
+++ b/chapter05/03.py
@@ -0,0 +1,84 @@
+from typing import TypedDict
+from loguru import logger
+import time
+from langgraph.types import interrupt, Command
+
+
+class OverallState(TypedDict):
+    initial_input: str
+    node_a1: str
+    node_a2: str
+    node_b: str
+
+
+def node_a1(state: OverallState) -> OverallState:
+    time.sleep(1)
+    logger.info("node_a1")
+    return OverallState(node_a1="node_a1")
+
+
+def node_a2(state: OverallState) -> OverallState:
+    time.sleep(3)
+    logger.info("node_a2")
+
+    return OverallState(node_a2="node_a2")
+
+
+def node_b(state: OverallState) -> OverallState:
+    time.sleep(1)
+    res = interrupt("hello")
+    logger.info("node_b")
+    return OverallState(node_b=f"node_b,res={res}")
+
+
+from langgraph.graph import StateGraph, START, END
+from langgraph.checkpoint.memory import InMemorySaver
+
+builder = StateGraph(state_schema=OverallState)
+builder.add_node("node_a1", node_a1)
+builder.add_node("node_a2", node_a2)
+builder.add_node("node_b", node_b)
+
+builder.add_edge(START, "node_a1")
+builder.add_edge(START, "node_a2")
+builder.add_edge(["node_a1", "node_a2"], "node_b")
+builder.add_edge("node_b", END)
+
+checkpoint_saver = InMemorySaver()
+
+graph = builder.compile(checkpointer=checkpoint_saver)
+
+from IPython.display import display
+
+display(graph)
+
+from rich import print as rp
+
+config = {
+    "configurable": {
+        "thread_id": "12345"
+    }
+}
+
+for chunk in graph.stream(
+        {"initial_input": "init"},
+        stream_mode=["checkpoints"],
+        config=config
+):
+    print("=" * 50)
+    rp(chunk)
+
+print("=" * 50)
+rp(list(graph.get_state_history(config=config)))
+
+print("**" * 50)
+
+for chunk in graph.stream(
+        Command(resume="interrupt_node_b_res"),
+        stream_mode=["checkpoints"],
+        config=config
+):
+    print("=" * 50)
+    rp(chunk)
+print("=" * 50)
+rp(list(graph.get_state_history(config=config)))
diff --git a/chapter05/03_output_checkpoints.ipynb b/chapter05/03_output_checkpoints.ipynb
new file mode 100644
index 0000000..15d080d
--- /dev/null
+++ b/chapter05/03_output_checkpoints.ipynb
@@ -0,0 +1,119 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "id": "initial_id",
+   "metadata": {
+    "collapsed": true
+   },
+   "source": [
+    "from typing import TypedDict\n",
+    "from loguru import logger\n",
+    "import time\n",
+    "\n",
+    "\n",
+    "class OverallState(TypedDict):\n",
+    "    initial_input: str\n",
+    "    node_a1: str\n",
+    "    node_a2: str\n",
+    "    node_b: str\n",
+    "\n",
+    "\n",
+    "def node_a1(state: OverallState) -> OverallState:\n",
+    "    time.sleep(1)\n",
+    "    logger.info(\"node_a1\")\n",
+    "    return OverallState(node_a1=\"node_a1\")\n",
+    "\n",
+    "\n",
+    "def node_a2(state: OverallState) -> OverallState:\n",
+    "    time.sleep(3)\n",
+    "    logger.info(\"node_a2\")\n",
+    "\n",
+    "    return OverallState(node_a2=\"node_a2\")\n",
+    "\n",
+    "\n",
+    "def node_b(state: OverallState) -> OverallState:\n",
+    "    time.sleep(1)\n",
+    "    logger.info(\"node_b\")\n",
+    "    return OverallState(node_b=\"node_b\")"
+   ],
+   "outputs": [],
+   "execution_count": null
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "source": [
+    "from langgraph.graph import StateGraph, START, END\n",
+    "from langgraph.checkpoint.memory import InMemorySaver\n",
+    "\n",
+    "builder = StateGraph(state_schema=OverallState)\n",
+    "builder.add_node(\"node_a1\", node_a1)\n",
+    "builder.add_node(\"node_a2\", node_a2)\n",
+    "builder.add_node(\"node_b\", node_b)\n",
+    "\n",
+    "builder.add_edge(START, \"node_a1\")\n",
+    "builder.add_edge(START, \"node_a2\")\n",
+    "builder.add_edge([\"node_a1\", \"node_a2\"], \"node_b\")\n",
+    "builder.add_edge(\"node_b\", END)\n",
+    "\n",
+    "checkpoint_saver = InMemorySaver()\n",
+    "\n",
+    "graph = builder.compile(checkpointer=checkpoint_saver)\n",
+    "\n",
+    "from IPython.display import display\n",
+    "\n",
+    "display(graph)"
+   ],
+   "id": "87e186e33e43ad5f",
+   "outputs": [],
+   "execution_count": null
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "source": [
+    "from rich import print as rp\n",
+    "\n",
+    "config = {\n",
+    "    \"configurable\": {\n",
+    "        \"thread_id\": \"12345\"\n",
+    "    }\n",
+    "}\n",
+    "\n",
+    "for chunk in graph.stream(\n",
+    "        {\"initial_input\": \"init\"},\n",
+    "        stream_mode=[\"checkpoints\"],\n",
+    "        config=config\n",
+    "):\n",
+    "    print(\"=\" * 50)\n",
+    "    # print(chunk)\n",
+    "    rp(chunk)"
+   ],
+   "id": "80bb26c320de30c7",
+   "outputs": [],
+   "execution_count": null
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/chapter05/04_output_tasks_debug.py b/chapter05/04_output_tasks_debug.py
new file mode 100644
index 0000000..9fd9270
--- /dev/null
+++ b/chapter05/04_output_tasks_debug.py
@@ -0,0 +1,86 @@
+from typing import TypedDict
+from loguru import logger
+import time
+from langgraph.types import interrupt, Command
+
+
+# https://xbsheng.github.io/atguigu-note/langgraph/%E8%AF%BE%E4%BB%B6/05-LangGraph%E9%AB%98%E7%BA%A7%E7%89%B9%E6%80%A7
+
+
+class OverallState(TypedDict):
+    initial_input: str
+    node_a1: str
+    node_a2: str
+    node_b: str
+
+
+def node_a1(state: OverallState) -> OverallState:
+    time.sleep(1)
+    logger.info("node_a1")
+    return OverallState(node_a1="node_a1")
+
+
+def node_a2(state: OverallState) -> OverallState:
+    time.sleep(3)
+    logger.info("node_a2")
+
+    return OverallState(node_a2="node_a2")
+
+
+def node_b(state: OverallState) -> OverallState:
+    time.sleep(1)
+    res = interrupt("hello")
+    logger.info("node_b")
+    return OverallState(node_b=f"node_b,res={res}")
+
+
+from langgraph.graph import StateGraph, START, END
+from langgraph.checkpoint.memory import InMemorySaver
+
+builder = StateGraph(state_schema=OverallState)
+builder.add_node("node_a1", node_a1)
+builder.add_node("node_a2", node_a2)
+builder.add_node("node_b", node_b)
+
+builder.add_edge(START, "node_a1")
+builder.add_edge(START, "node_a2")
+builder.add_edge(["node_a1", "node_a2"], "node_b")
+builder.add_edge("node_b", END)
+
+checkpoint_saver = InMemorySaver()
+
+graph = builder.compile(checkpointer=checkpoint_saver)
+
+from IPython.display import display
+
+display(graph)
+
+from rich import print as rp
+
+config = {
+    "configurable": {
+        "thread_id": "12345"
+    }
+}
+
+for chunk in graph.stream(
+        {"initial_input": "init"},
+        stream_mode=["debug"],
+        config=config
+):
+    print("=" * 50)
+    rp(chunk)
+
+# print("=" * 50)
+# rp(list(graph.get_state_history(config=config)))
+print("**" * 50)
+
+for chunk in graph.stream(
+        Command(resume="interrupt_node_b_res"),
+        stream_mode=["debug"],
+        config=config
+):
+    print("=" * 50)
+    rp(chunk)
+# print("=" * 50)
+# rp(list(graph.get_state_history(config=config)))
diff --git a/chapter05/05_output_custom.py b/chapter05/05_output_custom.py
new file mode 100644
index 0000000..e69de29