{"ast_node_type":"struct","tokens":[{"end":81,"kind":"keyword","start":0,"text":"///"}]}
///    Note that for a struct, the 'deep' unsizing of the struct is not recorded.
///
///    E.g., `struct Foo<T> { x: T }` we can coerce `&Foo<[i32; 4]>` to `&Foo<[i32]>`