From 349ba88aee3d70d0427db8046b01f3caff2f52fa Mon Sep 17 00:00:00 2001
From: engkheng <60956360+outday29@users.noreply.github.com>
Date: Thu, 4 May 2023 09:14:47 +0800
Subject: [PATCH] Export `FileChatMessageHistory` (#4042)

---
 langchain/memory/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/langchain/memory/__init__.py b/langchain/memory/__init__.py
index b8f321c8..2a6f3495 100644
--- a/langchain/memory/__init__.py
+++ b/langchain/memory/__init__.py
@@ -5,6 +5,7 @@ from langchain.memory.buffer import (
 from langchain.memory.buffer_window import ConversationBufferWindowMemory
 from langchain.memory.chat_message_histories.cosmos_db import CosmosDBChatMessageHistory
 from langchain.memory.chat_message_histories.dynamodb import DynamoDBChatMessageHistory
+from langchain.memory.chat_message_histories.file import FileChatMessageHistory
 from langchain.memory.chat_message_histories.in_memory import ChatMessageHistory
 from langchain.memory.chat_message_histories.postgres import PostgresChatMessageHistory
 from langchain.memory.chat_message_histories.redis import RedisChatMessageHistory
@@ -42,4 +43,5 @@ __all__ = [
     "PostgresChatMessageHistory",
     "VectorStoreRetrieverMemory",
     "CosmosDBChatMessageHistory",
+    "FileChatMessageHistory",
 ]