code: function map(callable, children) {
    var iterator = (0, _cmap.default)(callable, children)[Symbol.asyncIterator]();
    return new _Children.default(iterator, undefined);
  }
docs: Applies a given callable to each of the child of a given children async iterable.
  
  @param {Function} callable - The callable to use.
  @param {AsyncIterable} children - The input children.
  @returns {AsyncIterator}