{"ast_node_type":"function","tokens":[{"end":62,"kind":"keyword","start":0,"text":"fn"}]}
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
impl<'a, Ty: fmt::Display> fmt::Debug for TyAndLayout<'a, Ty> {
        // Print the type in a readable way, not its debug representation.