community[patch]: Update tongyi.py to support MultimodalConversation in dashscope. (#21249)

Add the support of multimodal conversation in dashscope,now we can use
multimodal language model "qwen-vl-v1", "qwen-vl-chat-v1",
"qwen-audio-turbo" to processing picture an audio. :)

- [ ] **PR title**: "community: add multimodal conversation support in
dashscope"



- [ ] **PR message**: ***Delete this entire checklist*** and replace
with
    - **Description:** add multimodal conversation support in dashscope
    - **Issue:** 
    - **Dependencies:** dashscope≥1.18.0
    - **Twitter handle:** none :)


- [ ] **How to use it?**:
   - ```python
     Tongyi_chat = ChatTongyi(
        top_p=0.5,
        dashscope_api_key=api_key,
        model="qwen-vl-v1"
     )
     response= Tongyi_chat.invoke(
        input = 
        [
        {
            "role": "user",
            "content": [
{"image":
"https://dashscope.oss-cn-beijing.aliyuncs.com/images/dog_and_girl.jpeg"},
                {"text": "这是什么?"}
            ]
        }
        ]
       )
      ```

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>

libs/community/langchain_community/chat_models/tongyi.py

@@ -241,8 +241,14 @@ class ChatTongyi(BaseChatModel):
 
     client: Any  #: :meta private:
     model_name: str = Field(default="qwen-turbo", alias="model")
-
-    """Model name to use."""
+    """Model name to use.
+    callable multimodal model:
+    - qwen-vl-v1
+    - qwen-vl-chat-v1
+    - qwen-audio-turbo
+    - qwen-vl-plus
+    - qwen-vl-max
+    """
     model_kwargs: Dict[str, Any] = Field(default_factory=dict)
 
     top_p: float = 0.8
@@ -280,10 +286,27 @@ class ChatTongyi(BaseChatModel):
                 "Could not import dashscope python package. "
                 "Please install it with `pip install dashscope --upgrade`."
             )
+        dashscope_multimodal_models = [
+            "qwen-vl-v1",
+            "qwen-vl-chat-v1",
+            "qwen-audio-turbo",
+            "qwen-vl-plus",
+            "qwen-vl-max",
+        ]
+        if (
+            values["model_name"] in dashscope_multimodal_models
+            or "vl" in values["model_name"]
+        ):
             try:
-            if "vl" in values["model_name"]:
                 values["client"] = dashscope.MultiModalConversation
+            except AttributeError:
+                raise ValueError(
+                    "`dashscope` has no `MultiModalConversation` attribute, this is "
+                    "likely due to an old version of the dashscope package. Try "
+                    "upgrading it with `pip install --upgrade dashscope`."
+                )
         else:
+            try:
                 values["client"] = dashscope.Generation
             except AttributeError:
                 raise ValueError(
@@ -291,7 +314,6 @@ class ChatTongyi(BaseChatModel):
                     "due to an old version of the dashscope package. Try upgrading it "
                     "with `pip install --upgrade dashscope`."
                 )
-
         return values
 
     @property