support return reasoning content for models like qwq in dashscope (#30317)

Thank you for contributing to LangChain!

- [x] **PR title**: "package: description"
- Where "package" is whichever of langchain, community, core, etc. is
being modified. Use "docs: ..." for purely docs changes, "infra: ..."
for CI changes.
  - Example: "community: add foobar LLM"

here is an example
```python
from langchain_community.chat_models.tongyi import ChatTongyi
from langchain_core.messages import HumanMessage

chatLLM = ChatTongyi(
    model="qwq-32b",   # refer to  https://help.aliyun.com/zh/model-studio/getting-started/models for more models
)
res = chatLLM.stream([HumanMessage(content="how much is 1 plus 1")])
for r in res:
    print(r)
```

```shell
content='' additional_kwargs={'reasoning_content': 'Okay, so the'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' user is asking "'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': 'how much is 1 plus'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1." Let me think'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' about this. Hmm'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ', 1 plus'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': " 1... That's a pretty"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' basic math question. I'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' remember from arithmetic that when'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' you add 1 and'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1 together, the'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' result is 2.'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' But wait, maybe'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' I should double-check to be'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' sure. Let me visualize it'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': '. If I have one apple'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' and someone gives me another'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' apple, I have'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' two apples total. Yeah,'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' that makes sense. Or'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' on a number line'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ', starting at 1 and'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' moving 1 step forward lands'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' you at 2'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': '. \n\nIs there any'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' context where 1 +'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1 might not equal'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 2? Like in different'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' number bases? Let'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': "'s see. In base"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 10, which'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' is standard,'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1+1 is'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 2. But if'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' we were in binary'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' (base 2'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': '), 1 +'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1 would be 1'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': '0. But the question'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': " doesn't specify a base,"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' so I think the'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' default is base 10'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': '. \n\nAlternatively, could'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' this be a trick'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' question? Maybe they'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': "'re referring to something else"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ', like in Boolean'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' algebra where 1 +'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1 might still'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' be 1 in'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' some contexts? Wait'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ', no, in Boolean'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' addition, 1'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' + 1 is typically'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': " 1 because it's logical"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' OR. But the'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' question just says "1'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' plus 1," which is'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' more arithmetic than Boolean.'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' \n\nOr maybe in some other'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' mathematical structure like modular arithmetic?'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' For example, modulo'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 2,'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1 + 1 is'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 0. But again'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ', unless specified, it'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': "'s probably standard addition"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': '. \n\nThe user might be'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' testing if I know basic'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' math, or maybe'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': " they're a student just"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' starting out. Either way,'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' the straightforward answer is'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 2. I should also'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': " consider if there's any cultural"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' references or jokes where'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1 + 1 equals'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' something else, but I can'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': "'t think of any common"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' ones. \n\nAlternatively'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ', in some contexts like'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' in chemistry,'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' 1 + 1 could refer'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' to mixing solutions, but that'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': "'s not standard. The question"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' is pretty simple,'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' so I think the answer'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' is 2. To'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' be thorough, maybe mention'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' that in standard arithmetic it'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': "'s 2, but if"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': " there's a different"} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' context, the answer'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' might vary. But since'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' no context is given'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ', 2 is the safest'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ' answer.'} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='The result' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' of 1 plus' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' 1 is **2**.' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' \n\nIn standard arithmetic (base' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' 10), adding' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' 1 and 1 together' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' yields 2. This is' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' a fundamental mathematical principle. If' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' the question involves a different context' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' (e.g., binary' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=', modular arithmetic, or a' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' metaphorical meaning), it' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' would need clarification,' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' but under typical circumstances, the' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content=' answer is **2**.' additional_kwargs={'reasoning_content': ''} response_metadata={} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'
content='' additional_kwargs={'reasoning_content': ''} response_metadata={'finish_reason': 'stop', 'request_id': '4738c641-6bd8-9efc-a4fe-d929d4e62bef', 'token_usage': {'input_tokens': 16, 'output_tokens': 560, 'total_tokens': 576}} id='run-bd026918-16e5-429f-aa75-3ff7701e9f8d'

```

Co-authored-by: ccurme <chester.curme@gmail.com>

libs/community/langchain_community/chat_models/tongyi.py

@@ -88,7 +88,6 @@ def convert_dict_to_message(
     """Convert a dict to a message."""
     role = _dict["role"]
     content = _dict["content"]
-
     if role == "user":
         return (
             HumanMessageChunk(content=content)
@@ -123,6 +122,8 @@ def convert_dict_to_message(
                             tool_calls.append(parsed_tool)
                     except Exception as e:
                         invalid_tool_calls.append(make_invalid_tool_call(value, str(e)))
+        elif "reasoning_content" in _dict:
+            additional_kwargs = {"reasoning_content": _dict["reasoning_content"]}
         elif "partial" in _dict and isinstance(_dict["partial"], bool):
             additional_kwargs = {"partial": _dict["partial"]}
         else:
@@ -486,11 +487,12 @@ class ChatTongyi(BaseChatModel):
                 "Please install it with `pip install dashscope --upgrade`."
             )
         dashscope_multimodal_models = [
-            "qwen-vl-v1",
-            "qwen-vl-chat-v1",
             "qwen-audio-turbo",
+            "qwen-audio-turbo-latest",
             "qwen-vl-plus",
+            "qwen-vl-plus-latest",
             "qwen-vl-max",
+            "qwen-vl-max-latest",
         ]
         if (
             values["model_name"] in dashscope_multimodal_models
@@ -729,6 +731,7 @@ class ChatTongyi(BaseChatModel):
             if (
                 choice["finish_reason"] == "null"
                 and message["content"] == ""
+                and message["reasoning_content"] == ""
                 and "tool_calls" not in message
             ):
                 continue