{"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"let"}]}
                let base_slice = Slice::new(*array_len, VarLen(0, 0));
                let seen_slices = seen.iter().filter_map(|c| c.as_slice());
                for (seen, splitted_slice) in base_slice.split(seen_slices) {