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app.py

@@ -22,8 +22,8 @@ with gr.Blocks() as app:
     def construct_prompt(*input_values):
         return flow.task.format(*input_values)
 
-    gr.api(flow.to_json, api_name="flow_config")
-                
+    gr.api(lambda : flow.to_json(), api_name="flow_config")
+
 
 if __name__ == "__main__":
     app.launch()