How to export to wav

HI, I want to record something and after that export it to .wav, the thins is that when I try to open and listen to the .wav file it's just not playing anythin, is like it's empty. The .aup3 it's completly normal, but the .wav is empty. Here is my code:

```
import pyaudacity as pa
import time
pa.do("SelectAll:")
pa.do("RemoveTracks:")
pa.do("Record2ndChoice:")
time.sleep(5.0)
pa.do("Stop:")
pa.do("Save:")
basename="audio"
pa.do('Export2: Filename="' + basename + '.wav"')
pa.do('TrackClose')
```

The wav autput is empty


Anyone that has solved this issue?

Thanks for reading.

Start by reproducing the provided recording and Export2 snippet in Audacity, then verify whether the project contains audio before and after export. Done means identifying why the resulting WAV is empty and confirming that the exported file contains playable audio.

Written by the indexing model from the issue text.