Update app.py

app.py

@@ -64,7 +64,7 @@ class ImageCaptioningTool(Tool):
             device=0 if torch.cuda.is_available() else -1
         )
 
-    def use(self, image, question):
+    def forward(self, image, question):
         if not isinstance(image, Image.Image):
             image = Image.open(BytesIO(image))
         result = self.captioner(image)