update some files

download_model.py

@@ -0,0 +1,5 @@
+from transformers import AutoTokenizer, AutoModel
+
+model_name = 'intfloat/e5-base-v2'
+tokenizer = AutoTokenizer.from_pretrained(model_name)
+model = AutoModel.from_pretrained(model_name)

install_env.sh

@@ -7,4 +7,4 @@ pip install transformers datasets pyserini
 
 conda install -c pytorch -c nvidia faiss-gpu=1.8.0 -y
 
-pip install uvicorn fastapi huggingface_hub pydantic
+pip install uvicorn fastapi huggingface_hub pydantic hf_transfer