use efx::efx;
#[derive(Default)]
struct Ui;
impl Ui {
fn button<S: Into<String>>(&mut self, _s: S) -> Resp { Resp }
fn add<T>(&mut self, _w: T) -> Resp { Resp }
fn add_enabled<T>(&mut self, _b: bool, _w: T) -> Resp { Resp }
}
struct Resp; impl Resp { fn clicked(&self) -> bool { false } }
fn main() {
let mut ui = Ui::default();
// enabled must be true/false
let _ = efx!(ui, r#"<Button enabled="maybe">Run</Button>"#);
}