{"ast_node_type":"struct","tokens":[{"end":85,"kind":"keyword","start":0,"text":"///"}]}
///    E.g., `struct Foo<T> { x: T }` we can coerce `&Foo<[i32; 4]>` to `&Foo<[i32]>`
///    Note that for a struct, the 'deep' unsizing of the struct is not recorded.
///    The autoderef and -ref are the same as in the above example, but the type