Added Download button for the model

app.py

@@ -15,6 +15,7 @@ def runNN(epoch, alpha):
     
     print(modelo)
     # Save model to file
+    st.download_button("Download model", data=modelo, file_name="modelo.json", mime="text/json")
     save_model(modelo, "modelo.json")
 
     for i in range(4):