Update app.py

app.py

@@ -1,8 +1,5 @@
 # app_pixal_chat.py
-import os, re, json, gradio as gr, requests
-from typing import Optional, List, Dict, Any
-from requests.adapters import HTTPAdapter, Retry
-from langchain.llms.base import LLM
+import os, re, json, gradio as gr,
 from langchain.memory import ConversationBufferMemory
 from langchain.agents import initialize_agent, AgentType, load_tools
 from langchain.tools import Tool
@@ -13,7 +10,6 @@ import datetime
 # ✅ GitHubModelLLM (그대로 유지)
 # ──────────────────────────────
 from langchain_openai import ChatOpenAI
-from langchain.chat_models.base import BaseChatModel
 from langchain.schema import AIMessage, HumanMessage, SystemMessage
 import requests, os, json
 from requests.adapters import HTTPAdapter, Retry