multiple: pydantic 2 compatibility, v0.3 (#26443)

Signed-off-by: ChengZi <chen.zhang@zilliz.com>
Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>
Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
Co-authored-by: Dan O'Donovan <dan.odonovan@gmail.com>
Co-authored-by: Tom Daniel Grande <tomdgrande@gmail.com>
Co-authored-by: Grande <Tom.Daniel.Grande@statsbygg.no>
Co-authored-by: Bagatur <baskaryan@gmail.com>
Co-authored-by: ccurme <chester.curme@gmail.com>
Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
Co-authored-by: Tomaz Bratanic <bratanic.tomaz@gmail.com>
Co-authored-by: ZhangShenao <15201440436@163.com>
Co-authored-by: Friso H. Kingma <fhkingma@gmail.com>
Co-authored-by: ChengZi <chen.zhang@zilliz.com>
Co-authored-by: Nuno Campos <nuno@langchain.dev>
Co-authored-by: Morgante Pell <morgantep@google.com>

libs/community/langchain_community/embeddings/modelscope_hub.py

@@ -1,7 +1,7 @@
 from typing import Any, List, Optional
 
 from langchain_core.embeddings import Embeddings
-from langchain_core.pydantic_v1 import BaseModel
+from pydantic import BaseModel, ConfigDict
 
 
 class ModelScopeEmbeddings(BaseModel, Embeddings):
@@ -17,7 +17,7 @@ class ModelScopeEmbeddings(BaseModel, Embeddings):
             embed = ModelScopeEmbeddings(model_id=model_id, model_revision="v1.0.0")
     """
 
-    embed: Any
+    embed: Any = None
     model_id: str = "damo/nlp_corom_sentence-embedding_english-base"
     """Model name to use."""
     model_revision: Optional[str] = None
@@ -39,8 +39,7 @@ class ModelScopeEmbeddings(BaseModel, Embeddings):
             model_revision=self.model_revision,
         )
 
-    class Config:
-        extra = "forbid"
+    model_config = ConfigDict(extra="forbid", protected_namespaces=())
 
     def embed_documents(self, texts: List[str]) -> List[List[float]]:
         """Compute doc embeddings using a modelscope embedding model.