def get_next_node(node):
    root = get_root_node(node)
    is_next = [False]
    next_node = get_next_node_in_order_of_node(node, root, is_next)
    return next_node
def get_next_node(node):
    root = get_root_node(node)
    is_next = [False]
    next_node = get_next_node_in_order_of_node(node, root, is_next)
    return next_node