Update app.py

app.py

@@ -22,7 +22,8 @@ from langchain_huggingface import HuggingFaceEndpoint
 from langchain_huggingface import HuggingFaceEmbeddings
 #from langchain_community.llms import HuggingFaceTextGenInference
 #from langchain_community.embeddings import HuggingFaceInstructEmbeddings, HuggingFaceEmbeddings, HuggingFaceBgeEmbeddings, HuggingFaceInferenceAPIEmbeddings
-from langchain.prompts import PromptTemplate
+#from langchain.prompts import PromptTemplate
+#from langchain.chains import Runnable.................................
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_community.vectorstores import Chroma
 from chromadb.errors import InvalidDimensionException