new code

src/pdfchatbot.py

@@ -129,7 +129,9 @@ class PDFChatBot:
             self.processed = True
 
         result = self.create_organic_response(history="",query=query)
-        return list(list(result)),""
+        for char in result:
+            history[-1][-1] += char
+        return history,""
 
     def render_file(self, file,chunk_size):
         print(chunk_size)