Subscription file syntax is designed to minimize boiler-plate when authoring new subscriptions.
You can now unpack any subscription using the ``inspect`` sub-command to see its boiler-plate *preset format*.
```
ytdl-sub inspect --config /path/to/config.yaml --match "BBC News" /path/to/subscriptions.yaml
```
This can be utilized for numerous purposes including:
* Ensuring your custom preset is getting applied correctly.
* Figuring out which variables set things like file names, metadata, etc.
* Understanding how subscription syntax translates to preset representation.
The default ``--level`` of inspect will fill in defined variables. Using ``--level original`` will present the subscription's raw layout with no fill.
