Update app.py

app.py

@@ -8,7 +8,7 @@ from transformers import AutoModel, AutoTokenizer
 from diffusers import StableDiffusionXLPipeline, UNet2DConditionModel, EulerDiscreteScheduler
 from parler_tts import ParlerTTSForConditionalGeneration
 import soundfile as sf
-from llama_index import GPTVectorStoreIndex, SimpleDirectoryReader, LLMPredictor, PromptHelper
+from llama_index import VectorStoreIndex, SimpleDirectoryReader, LLMPredictor, PromptHelper
 from llama_index.embeddings import GroqEmbedding
 from llama_index.llms import GroqLLM
 from llama_index.agent import ReActAgent
@@ -100,7 +100,7 @@ def doc_question_answering(query, file_path):
     prompt_helper = PromptHelper()
     
     # Create index
-    index = GPTVectorStoreIndex.from_documents(
+    index = VectorStoreIndex.from_documents(
         documents, 
         embed_model=embed_model,
         llm_predictor=llm_predictor,