Update app.py

app.py

@@ -66,13 +66,13 @@ class SAMAPI:
     predictor = None
 
     @staticmethod
-    # @st.cache_resource
+    @st.cache_resource
     def get_instance(sam_checkpoint=None):
         if SAMAPI.predictor is None:
             if sam_checkpoint is None:
-                sam_checkpoint = "sam_pt/sam_vit_h_4b8939.pth"
+                sam_checkpoint = "tmp/sam_vit_h_4b8939.pth"
             if not os.path.exists(sam_checkpoint):
-                os.makedirs('sam_pt', exist_ok=True)
+                os.makedirs('tmp', exist_ok=True)
                 urllib.request.urlretrieve(
                     "https://dl.fbaipublicfiles.com/segment_anything/sam_vit_h_4b8939.pth",
                     sam_checkpoint