fix imports

app.py

@@ -1,5 +1,6 @@
 import gradio as gr
 import numpy as np
+import pandas as pd
 from PIL import Image
 
 from mussel.utils import get_features, segment_tissue
@@ -17,15 +18,7 @@ def analyze_slide(slide_path, model_name="RESNET50"):
     )
 
     df_coords = pd.DataFrame(coords, columns=['x', 'y'])
-    #features, labels = get_features(coords, slide_path, attrs, model_type=ModelType.RESNET50)
-#    feature_h5_path = "features.h5"
-#    extract_features(
-#        slide_path,
-#        output_h5_path=feature_h5_path,
-#        patch_h5_path=patch_h5_path,
-#        model_type=model_name,
-#        use_gpu=False,
-#    )
+    features, labels = get_features(coords, slide_path, attrs, model_type=ModelType.RESNET50, use_gpu=False)
 
     return df_coords