I have 2 tests that will generate `AtomicStorage<{u8, u16}>` as follows: 

```
#[cfg(test)]
mod tests {
    use super::*;
    use bitflags::bitflags;

    bitflags! {
        struct FlagsU8: u8 {
            const A = 1;
            const B = 2;
        }
    }

    bitflags! {
        struct FlagsU16: u16 {
            const A = 1;
            const B = 2;
        }
    }

    fn test() {
        let a = BitChannel::<FlagsU8>::new();
        let b = BitChannel::<FlagsU16>::new();
    }
}
```