adding summarization

app.py

@@ -67,8 +67,8 @@ def document_loader(file_path,api_key,doc_type='pdf',llm='Huggingface'):
                                      chain_type='stuff',
                                      retriever=vector_db.as_retriever(),
                                     #  chain_type_kwargs=chain_type_kwargs,
-                                     return_source_documents=True
-                                     )
+                                    #  return_source_documents=True
+                                    )
     else:
         return "Error in loading Documents "