Update RAG.py

RAG.py

@@ -5,6 +5,8 @@ from langchain.vectorstores import Chroma
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.llms import HuggingFaceHub
 from langchain.chains import RetrievalQA
+import chromadb
+
 
 
 # file_path = "thyroidDF.csv"