Update app.py

app.py

@@ -69,18 +69,18 @@ class AdvancedPdfChatbot:
         self.overall_chain = self.CustomChain(refinement_chain=refinement_chain, qa_chain=qa_chain)
 
         def setup_conversation_chain(self):
-        refinement_chain = LLMChain(
-            llm=self.refinement_llm,
-            prompt=self.refinement_prompt,
-            output_key='refined_query'
-        )
-        qa_chain = ConversationalRetrievalChain.from_llm(
-            self.llm,
-            retriever=self.db.as_retriever(),
-            memory=self.memory,
-            combine_docs_chain_kwargs={"prompt": self.prompt}
-        )
-        self.overall_chain = self.CustomChain(refinement_chain=refinement_chain, qa_chain=qa_chain)
+            refinement_chain = LLMChain(
+                llm=self.refinement_llm,
+                prompt=self.refinement_prompt,
+                output_key='refined_query'
+            )
+            qa_chain = ConversationalRetrievalChain.from_llm(
+                self.llm,
+                retriever=self.db.as_retriever(),
+                memory=self.memory,
+                combine_docs_chain_kwargs={"prompt": self.prompt}
+            )
+            self.overall_chain = self.CustomChain(refinement_chain=refinement_chain, qa_chain=qa_chain)
 
     class CustomChain(Chain):
         def __init__(self, refinement_chain, qa_chain):