community: make old stub for QuerySQLDataBaseTool private to skip api…

… ref (#28711)

libs/community/langchain_community/chat_models/outlines.py

@@ -122,13 +122,13 @@ class ChatOutlines(BaseChatModel):
     This can be useful for generating structured outputs like IP addresses, dates, etc.
     
     Example: (valid IP address)
-        regex = r"((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)"
+        regex = r"((25[0-5]|2[0-4]\\d|[01]?\\d\\d?)\\.){3}(25[0-5]|2[0-4]\\d|[01]?\\d\\d?)"
     
     Note: Computing the regex index can take some time, so it's recommended to reuse
     the same regex for multiple generations if possible.
     
     For more details, see: https://dottxt-ai.github.io/outlines/reference/generation/regex/
-    """
+    """  # noqa: E501
 
     type_constraints: Optional[Union[type, str]] = None
     """Type constraints for structured generation.

libs/community/langchain_community/tools/sql_database/tool.py

@@ -7,6 +7,7 @@
 
 from pydantic import BaseModel, Field, root_validator, model_validator, ConfigDict
 
+from langchain_core._api.deprecation import deprecated
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.callbacks import (
     AsyncCallbackManagerForToolRun,
@@ -58,8 +59,17 @@ def _run(
         return self.db.run_no_throw(query)
 
 
-# Backwards compatibility.
-QuerySQLDataBaseTool = QuerySQLDatabaseTool
+@deprecated(
+    since="0.3.12",
+    removal="1.0",
+    alternative_import="langchain_community.tools.QuerySQLDatabaseTool",
+)
+class QuerySQLDataBaseTool(QuerySQLDatabaseTool):  # type: ignore[override]
+    """
+    Equivalent stub to QuerySQLDatabaseTool for backwards compatibility.
+    :private:"""
+
+    ...
 
 
 class _InfoSQLDatabaseToolInput(BaseModel):