trait XmlWriterExt {
// Required methods
fn write_color_attribute(&mut self, name: &str, ts: Color);
fn write_transform_attribute(&mut self, name: &str, ts: Transform);
fn write_spread_method_attribute(&mut self, method: Extend);
}trait XmlWriterExt {
// Required methods
fn write_color_attribute(&mut self, name: &str, ts: Color);
fn write_transform_attribute(&mut self, name: &str, ts: Transform);
fn write_spread_method_attribute(&mut self, method: Extend);
}