{"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> { it: T }` we can coerce &Foo<[i32; 4]> to &Foo<[i32]>