def METHOD_NAME():
    def layout_fn(node):
        if node.props.get('lca_node_name'):
            lca = node.props.get('lca_node_name')
            color = node.props.get('Lca_color')
            level = get_level(node)
            lca_face = RectFace(15, float('inf'),
                    color=color,
                    text=lca,
                    fgcolor="white",
                    padding_x=1, padding_y=1)
            lca_face.rotate_text = True
            node.add_face(lca_face, position='aligned', column=level)
            node.add_face(lca_face, position='aligned', column=level,
                    collapsed_only=True)
    layout_fn.__name__ = 'Last common ancestor'
    layout_fn.contains_aligned_face = True
    return layout_fn