Update src/rag.py

src/rag.py

@@ -6,7 +6,8 @@ from langchain_core.output_parsers import StrOutputParser
 from langchain_core.prompts import ChatPromptTemplate
 from langchain_qdrant import QdrantVectorStore
 from langchain_community.cross_encoders import HuggingFaceCrossEncoder
-from langchain_community.retrievers.document_compressors import CrossEncoderReranker
+from langchain.retrievers.document_compressors import CrossEncoderReranker
+from langchain.retrievers import ContextualCompressionRetriever
 from sentence_transformers import CrossEncoder