device/!device example is confusing

[bschlenk]

Describe Your Problem:

I'm updating an old plugin to be structured like this plugin template. The platform example has a confusing part where device is checked. However, the !device block is dead code - the device won't ever be null in this example. In what case would we want to unregister an accessory, or know that a device that used to exist no longer exists?

[oznu]

Thanks