Update vector_store_retriever.py

vector_store_retriever.py

@@ -5,10 +5,10 @@ import time
 from pydantic import BaseModel, Field
 from typing import Any, Optional, Dict, List, Union
 from huggingface_hub import InferenceClient
-from langchain.llms.base import LLM, EmbeddingFunction, Embeddings
+from langchain.llms.base import LLM
 from langchain.Images import Images
 from langchain.llms.base import LLM
-from langchain.embeddings import HuggingFaceInstructEmbeddings
+from langchain.embeddings import HuggingFaceInstructEmbeddings, EmbeddingFunction, Embeddings
 
 from langchain.Documents import Documents
 from langchain.vectorstores import Chroma