{"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"lane_diff_acc"}]}
                    lane_diff_acc = fx.bcx.ins().iadd(lane_diff_acc, abs_lane_diff);
                    let abs_lane_diff = fx.bcx.ins().uextend(types::I64, abs_lane_diff);
                }