Custom types with `HasCompact`

Hi, I have a custom wrapper type that, in terms of encoding/decoding, should behave exactly as its underlying type:

type MyWrapper<T>;

I'm able to implement Encode/Decode successfully, nevertheless, if this type is used as follows:

struct Foo {
    #[codec(compact)]
    a: MyWrapper<u64>,
}

The compile throws an error. Basically, it requires that CompactRef<'a, MyWrapper<u64>> implements Encode/Decode. But I can not do that because both CompactRef and Encode/Decode are foreign to my crate. I can neither implement HasCompact directly because it's already implemented for T in the library, and to fulfill the conditions, I need the CompactRef implementation.

Is any way to create compactables custom types?

Start by tracing the HasCompact and CompactRef implementations, along with the Encode/Decode bounds used by the #[codec(compact)] attribute. Reproduce the reported failure with MyWrapper and Foo, then determine whether a supported path for custom compactable types can be provided; done means the wrapper compiles and encodes and decodes correctly under the compact attribute.