{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"example,"}]}
example, it is unspecified whether `size_of::<T>()` is equal to
`#[repr(transparent)]` to  `union` does not change this. To give a more concrete
`size_of::<Option<T>>()`, where `T` is a `union` (regardless of whether or not