45     iterable[Symbol.iterator] = function() { return iterator; };  function
80 function fold(cons, seed, iterable) {  argument
87 function* take(iterable, n) {  argument
95 function nth(iterable, n) {  argument
102 function* skip_every(iterable, n) {  argument
110 function* iter_map(iterable, f) {  argument
115 function nested_fold(cons, seed, iterable) {  argument
125 function* unreachable(iterable) {  argument
149 function remove_next_after(iterable, n) {  argument
158 function poison_next_after(iterable, n) {  argument
235 function labelled_continue(iterable) {  argument
247 function labelled_break(iterable) {  argument
259 function catch_control(iterable, k) {  argument
286 function try_control(iterable, k) {  argument