libs: add sambanova-lagchain integration package (#29417)

- **Description:**: Add sambanova-langchain integration package as
suggested in previous PRs

---------

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

libs/community/langchain_community/chat_models/sambanova.py

@@ -16,6 +16,7 @@ from typing import (
 )
 
 import requests
+from langchain_core._api.deprecation import deprecated
 from langchain_core.callbacks import (
     CallbackManagerForLLMRun,
 )
@@ -107,6 +108,11 @@ def _is_pydantic_class(obj: Any) -> bool:
     return isinstance(obj, type) and is_basemodel_subclass(obj)
 
 
+@deprecated(
+    since="0.3.16",
+    removal="1.0",
+    alternative_import="langchain_sambanova.ChatSambaNovaCloud",
+)
 class ChatSambaNovaCloud(BaseChatModel):
     """
     SambaNova Cloud chat model.
@@ -952,6 +958,11 @@ class ChatSambaNovaCloud(BaseChatModel):
             yield chunk
 
 
+@deprecated(
+    since="0.3.16",
+    removal="1.0",
+    alternative_import="langchain_sambanova.ChatSambaStudio",
+)
 class ChatSambaStudio(BaseChatModel):
     """
     SambaStudio chat model.

libs/community/langchain_community/embeddings/sambanova.py

@@ -2,11 +2,17 @@ import json
 from typing import Dict, Generator, List, Optional
 
 import requests
+from langchain_core._api.deprecation import deprecated
 from langchain_core.embeddings import Embeddings
 from langchain_core.utils import get_from_dict_or_env, pre_init
 from pydantic import BaseModel, ConfigDict
 
 
+@deprecated(
+    since="0.3.16",
+    removal="1.0",
+    alternative_import="langchain_sambanova.SambaStudioEmbeddings",
+)
 class SambaStudioEmbeddings(BaseModel, Embeddings):
     """SambaNova embedding models.
 

libs/packages.yml

@@ -361,3 +361,7 @@ packages:
   repo: paymanai/langchain-payman-tool
   downloads: 0
   downloads_updated_at: "2025-01-22T00:00:00+00:00"
+- name: langchain-sambanova
+  repo: sambanova/langchain-sambanova
+  path: .
+  downloads: 0