add abstractive model

abstractive_model.py

@@ -0,0 +1,6 @@
+from transformers import pipeline
+
+def summarize_with_bart(text):
+    pipe = pipeline("text2text-generation", model="EE21/Fine-tuned-BART-ToS-Summarization")
+    summary = pipe(text, max_length=130, min_length=30, do_sample=False)[0]['generated_text']
+    return summary

app.py

@@ -1,6 +1,7 @@
 import streamlit as st
 import PyPDF2
 from extractive_model import summarize_with_textrank
+from abstractive_model import summarize_with_bart
 #from blanc import BlancHelp
 
 # Set page to wide mode
@@ -51,9 +52,8 @@ def main():
 
             # Perform extractive summarization
             if radio_selection == "Abstractive":
-                None
-                #summary = summarize_with_textrank(file_content)
-                #st.session_state.summary = summary
+                summary = summarize_with_bart(file_content)
+                st.session_state.summary = summary
 
     # Right column: Displaying text after pressing 'Summarize'
     with col3: