pub trait NodeStateAttributes {
// Required methods
fn layout_attributes(&self) -> Vec<(&str, AttributeType<'_>)>;
fn font_style_attributes(&self) -> Vec<(&str, AttributeType<'_>)>;
fn style_attributes(&self) -> Vec<(&str, AttributeType<'_>)>;
fn svg_attributes(&self) -> Vec<(&str, AttributeType<'_>)>;
}