path: Added deprecation for mistralai/mixtral-8x7b-instruct-v01 mod…

…el (#27)

* path: added deprecation warning for mistralai/mixtral-8x7b-instruct-v01 model

libs/ibm/langchain_ibm/chat_models.py

@@ -2,6 +2,7 @@
 
 import json
 import logging
+import warnings
 from datetime import datetime
 from operator import itemgetter
 from typing import (
@@ -23,6 +24,7 @@
 
 from ibm_watsonx_ai import APIClient, Credentials  # type: ignore
 from ibm_watsonx_ai.foundation_models import ModelInference  # type: ignore
+from langchain_core._api import LangChainDeprecationWarning
 from langchain_core.callbacks import CallbackManagerForLLMRun
 from langchain_core.language_models import LanguageModelInput
 from langchain_core.language_models.chat_models import (
@@ -862,6 +864,13 @@ def bind_tools(
                 f"bind_tools() method for ChatWatsonx support only "
                 f"following models: {bind_tools_supported_models}"
             )
+        else:
+            warnings.warn(
+                "The `mistralai/mixtral-8x7b-instruct-v01` model, which "
+                "supports the `bind_tools()` method, is deprecated and will be "
+                "removed in version 0.3.x of `langchain_ibm`.",
+                LangChainDeprecationWarning,
+            )
 
         formatted_tools = [convert_to_openai_tool(tool) for tool in tools]