Function mt_dom::element_ns

pub fn element_ns<NS, TAG, ATT, VAL, EVENT, MSG>(
    namespace: Option<NS>, 
    tag: TAG, 
    attrs: Vec<Attribute<NS, ATT, VAL, EVENT, MSG>>, 
    children: Vec<Node<NS, TAG, ATT, VAL, EVENT, MSG>>, 
    self_closing: bool
) -> Node<NS, TAG, ATT, VAL, EVENT, MSG>

create a virtual node with namespace, tag, attrs and children