progress more (3.3++)

app.py

@@ -11,10 +11,6 @@ from langchain_community.chat_models import ChatOpenAI
 from langchain.prompts import PromptTemplate
 from langchain_core.runnables import RunnablePassthrough
 from transformers import pipeline
-from reportlab.lib import colors
-from reportlab.lib.pagesizes import letter
-from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer
-from reportlab.lib.styles import getSampleStyleSheet
 from io import StringIO, BytesIO
 import sys
 import contextlib