Update helpers.py

helpers.py

@@ -5,6 +5,7 @@ import tempfile
 from pathlib import Path
 from unidecode import unidecode
 from langchain_community.document_loaders import JSONLoader, UnstructuredWordDocumentLoader, WebBaseLoader, AsyncHtmlLoader
+from langchain_community.document_transformers import Html2TextTransformer
 from langchain_text_splitters import RecursiveCharacterTextSplitter, RecursiveJsonSplitter
 from langchain_community.vectorstores import FAISS
 from langchain_google_genai import GoogleGenerativeAIEmbeddings, ChatGoogleGenerativeAI