fix

chess_image_to_fen_tool.py

@@ -20,6 +20,8 @@ def chess_image_to_fen(image_path_in_base64:str, current_player: Literal["black"
     print(f"current_player: {current_player}")
 
 
+    CHESSVISION_TO_FEN_URL = "http://app.chessvision.ai/predict"
+
     if current_player not in ["black", "white"]:
         raise ValueError("current_player must be 'black' or 'white'")