Update app.py

app.py

@@ -5,6 +5,8 @@ import numpy as np
 import tensorflow as tf
 import tensorflow_hub as hub
 import matplotlib.pyplot as plt
+import gradio as gr
+
 os.environ["TFHUB_DOWNLOAD_PROGRESS"] = "True"
 
 os.system("wget https://user-images.githubusercontent.com/12981474/40157448-eff91f06-5953-11e8-9a37-f6b5693fa03f.png -O original.png")
@@ -42,7 +44,7 @@ def plot_image(image):
   return image
   
 model = hub.load(SAVED_MODEL_PATH)
-def inference(img)
+def inference(img):
   hr_image = preprocess_image(img)
   start = time.time()
   fake_image = model(hr_image)