diff --git a/ssh_server.py b/ssh_server.py
index 2b73141..e426b80 100644
--- a/ssh_server.py
+++ b/ssh_server.py
@@ -1,6 +1,4 @@
-# To run this program, the file ``ssh_host_key`` must exist with an SSH
-# private key in it to use as a server host key. An SSH host certificate
-# can optionally be provided in the file ``ssh_host_key-cert.pub``.
+#!/usr/bin/env python3
 
 import asyncio
 import asyncssh
@@ -17,10 +15,7 @@ from langchain_aws import ChatBedrock, ChatBedrockConverse
 from langchain_google_genai import ChatGoogleGenerativeAI
 
 from langchain_core.messages import HumanMessage
-from langchain_core.chat_history import (
-    BaseChatMessageHistory,
-    InMemoryChatMessageHistory,
-)
+from langchain_core.chat_history import BaseChatMessageHistory, InMemoryChatMessageHistory
 from langchain_core.runnables.history import RunnableWithMessageHistory
 from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_core.messages import SystemMessage, trim_messages
@@ -30,6 +25,8 @@ from operator import itemgetter
 
 from configparser import ConfigParser
 
+
+
 async def handle_client(process: asyncssh.SSHServerProcess) -> None:
 # This is the main loop for handling SSH client connections. 
 # Any user interaction should be done here.