Macro opaque_serde_diff

macro_rules! opaque_serde_diff {
    ($t:ty) => { ... };
}

Implements SerdeDiff on a type given that it impls Serialize + Deserialize + PartialEq. This makes the type a “terminal” type in the SerdeDiff hierarchy, meaning deeper inspection will not be possible. Use the SerdeDiff derive macro for recursive field inspection.