docs: function unwrap() {
                  var nodes = Array.prototype.slice.call(el.childNodes),
                      wrapper = void 0;
  
                  nodes.forEach(function (node) {
                      wrapper = node.parentNode;
                      dom(node).insertBefore(node.parentNode);
                      dom(wrapper).remove();
                  });
  
                  return nodes;
              }