From 04d134df1745333d43d8c788b7bd36573b02b13c Mon Sep 17 00:00:00 2001
From: Leonid Kuligin <lkuligin@yandex.ru>
Date: Tue, 5 Mar 2024 18:34:53 +0100
Subject: [PATCH] marked MatchingEngine as deprecated (#18585)

Thank you for contributing to LangChain!

- [ ] **PR title**: "community: deprecate vectorstores.MatchingEngine"


- [ ] **PR message**:
- **Description:** announced a deprecation since this integration has
been moved to langchain_google_vertexai
---
 .../langchain_community/vectorstores/matching_engine.py     | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libs/community/langchain_community/vectorstores/matching_engine.py b/libs/community/langchain_community/vectorstores/matching_engine.py
index ae77aa5ad22..9cae484009c 100644
--- a/libs/community/langchain_community/vectorstores/matching_engine.py
+++ b/libs/community/langchain_community/vectorstores/matching_engine.py
@@ -6,6 +6,7 @@ import time
 import uuid
 from typing import TYPE_CHECKING, Any, Iterable, List, Optional, Tuple, Type
 
+from langchain_core._api.deprecation import deprecated
 from langchain_core.documents import Document
 from langchain_core.embeddings import Embeddings
 from langchain_core.vectorstores import VectorStore
@@ -25,6 +26,11 @@ if TYPE_CHECKING:
 logger = logging.getLogger(__name__)
 
 
+@deprecated(
+    since="0.0.12",
+    removal="0.2.0",
+    alternative_import="langchain_google_vertexai.VectorSearchVectorStore",
+)
 class MatchingEngine(VectorStore):
     """`Google Vertex AI Vector Search` (previously Matching Engine) vector store.