dom/dom.go
func (p RequestChildNodesParams) WithPierce(pierce bool) *RequestChildNodesParams {
	p.Pierce = pierce
	return &p
}
func (p RequestChildNodesParams) WithPierce(pierce bool) *RequestChildNodesParams {
	p.Pierce = pierce
	return &p
}
// WithPierce whether or not iframes and shadow roots should be traversed
// when returning the sub-tree (default is false).