{"ast_node_type":"variable","tokens":[{"end":77,"kind":"keyword","start":0,"text":"let"}]}
                        let size_as_align = align.max(size).trailing_zeros();
                        // Group [u8; 4] with align-4 or [u8; 6] with align-2 fields.
                        let size_as_align = if largest_niche_size > 0 {