Deprecate Cloudflare langchain community implementations (#23)

Co-authored-by: AkshataDM <[email protected]>
Co-authored-by: Chester Curme <[email protected]>

Author: AkshataDM

libs/community/langchain_community/chat_models/cloudflare_workersai.py

@@ -16,6 +16,7 @@
 
 import requests
 from langchain.schema import AIMessage, ChatGeneration, ChatResult, HumanMessage
+from langchain_core._api.deprecation import deprecated
 from langchain_core.callbacks import CallbackManagerForLLMRun
 from langchain_core.language_models import LanguageModelInput
 from langchain_core.language_models.chat_models import BaseChatModel
@@ -110,6 +111,11 @@ def _get_tool_calls_from_response(response: requests.Response) -> List[ToolCall]
     return tool_calls
 
 
+@deprecated(
+    since="0.3.23",
+    removal="1.0",
+    alternative_import="langchain_cloudflare.ChatCloudflareWorkersAI",
+)
 class ChatCloudflareWorkersAI(BaseChatModel):
     """Custom chat model for Cloudflare Workers AI"""
 

libs/community/langchain_community/embeddings/cloudflare_workersai.py

@@ -1,12 +1,18 @@
 from typing import Any, Dict, List
 
 import requests
+from langchain_core._api.deprecation import deprecated
 from langchain_core.embeddings import Embeddings
 from pydantic import BaseModel, ConfigDict
 
 DEFAULT_MODEL_NAME = "@cf/baai/bge-base-en-v1.5"
 
 
+@deprecated(
+    since="0.3.23",
+    removal="1.0",
+    alternative_import="langchain_cloudflare.CloudflareWorkersAIEmbeddings",
+)
 class CloudflareWorkersAIEmbeddings(BaseModel, Embeddings):
     """Cloudflare Workers AI embedding model.