Update app.py

app.py

@@ -73,7 +73,7 @@ def predict(image, slider_threshold=0.5, fixed_thresholds=None):
 
     return slider_results, fixed_threshold_results
 
-def predict_wrapper(image, slider_threshold):
+def predict_wrapper(image, slider_threshold=0.5):
     # Download thresholds from the model repository
     thresholds = download_thresholds(checkpoint_name, "threshold.json")