Update app.py

app.py

@@ -3,6 +3,16 @@ import gradio as gr
 HF_TOKEN = os.getenv('HF_TOKEN')
 hf_writer = gr.HuggingFaceDatasetSaver(HF_TOKEN, "save_audio")
 
+def calculator(num1, operation, num2):
+    if operation == "add":
+        return num1 + num2
+    elif operation == "subtract":
+        return num1 - num2
+    elif operation == "multiply":
+        return num1 * num2
+    elif operation == "divide":
+        return num1 / num2
+
 iface = gr.Interface(
     calculator,
     ["number", gr.Radio(["add", "subtract", "multiply", "divide"]), "number"],