Update app.py

app.py

@@ -6,8 +6,9 @@ from datetime import datetime
 from langchain_openai import ChatOpenAI
 from langchain_anthropic import ChatAnthropic
 from langchain_google_genai import ChatGoogleGenerativeAI
-ChatGoogleGenerativeAI.model_rebuild()
 from langchain_core.messages import HumanMessage
+from langchain_core.caches import BaseCache
+ChatGoogleGenerativeAI.model_rebuild()
 import PyPDF2
 import docx
 import pandas as pd