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/utilities/powerbi.py

@@ -10,7 +10,12 @@ from typing import TYPE_CHECKING, Any, Dict, Iterable, List, Optional, Union
 import aiohttp
 import requests
 from aiohttp import ClientTimeout, ServerTimeoutError
-from langchain_core.pydantic_v1 import BaseModel, Field, root_validator, validator
+from pydantic import (
+    BaseModel,
+    ConfigDict,
+    Field,
+    model_validator,
+)
 from requests.exceptions import Timeout
 
 logger = logging.getLogger(__name__)
@@ -40,17 +45,16 @@ class PowerBIDataset(BaseModel):
     schemas: Dict[str, str] = Field(default_factory=dict)
     aiosession: Optional[aiohttp.ClientSession] = None
 
-    class Config:
-        arbitrary_types_allowed = True
+    model_config = ConfigDict(
+        arbitrary_types_allowed=True,
+    )
 
-    @validator("table_names", allow_reuse=True)
-    def fix_table_names(cls, table_names: List[str]) -> List[str]:
-        """Fix the table names."""
-        return [fix_table_name(table) for table in table_names]
-
-    @root_validator(pre=True)
-    def token_or_credential_present(cls, values: Dict[str, Any]) -> Dict[str, Any]:
+    @model_validator(mode="before")
+    @classmethod
+    def validate_params(cls, values: Dict[str, Any]) -> Any:
         """Validate that at least one of token and credentials is present."""
+        table_names = values.get("table_names", [])
+        values["table_names"] = [fix_table_name(table) for table in table_names]
         if "token" in values or "credential" in values:
             return values
         raise ValueError("Please provide either a credential or a token.")