Update app.py

app.py

@@ -8,9 +8,8 @@ from langchain.evaluation import load_evaluator
 from pprint import pprint as print
 import time
 
-from langchain.chains import LLMChain, RetrievalQA
-from langchain.chat_models import ChatOpenAI
-from langchain.retrievers.self_query.base import SelfQueryRetriever
+#from langchain.chains import LLMChain, RetrievalQA
+#from langchain.retrievers.self_query.base import SelfQueryRetriever
 from langchain.document_loaders import PyPDFLoader, WebBaseLoader, UnstructuredWordDocumentLoader, DirectoryLoader
 from langchain.document_loaders.blob_loaders.youtube_audio import YoutubeAudioLoader
 from langchain.document_loaders.generic import GenericLoader
@@ -20,7 +19,7 @@ from langchain.embeddings import HuggingFaceInstructEmbeddings, HuggingFaceEmbed
 from langchain.prompts import PromptTemplate
 from langchain.embeddings.openai import OpenAIEmbeddings
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.retrievers.self_query.base import SelfQueryRetriever
+#from langchain.retrievers.self_query.base import SelfQueryRetriever
 from langchain.vectorstores import Chroma
 from chromadb.errors import InvalidDimensionException