Update app.py

app.py

@@ -8,6 +8,7 @@ lib_url = f"git+https://{GIT_USER}:{GIT_TOKEN}@github.com/vasudevgupta7/huggingf
 subprocess.run(f"pip3 install -q {lib_url}".split())
 
 import torch
+import numpy as np
 import gradio as gr
 from transformers import AutoModel, AutoTokenizer
 from pytorch_pretrained_biggan import BigGAN