Existing asset loaders will need a few small changes to get them to work with Bevy Assets V2.
First, you'll need to add the asset type as an associated type of the loader. This type is called Asset and represents the type of the "default asset" produced by the loader.
You'll also need to add a Settings type which represents options that can be passed to the loader when you request an asset. If your asset has no settings, then you can just set it to the unit type.
