1use duang::duang; 2 3duang!( 4pub fn foo<T>(a: T,b: f64 = 13.0, c: T = a*a) -> (T,f64,T) 5where 6 T: std::ops::Mul<T, Output = T>, 7 T: std::fmt::Display, 8 T: Copy, 9{ 10 (a,b,c) 11} 12);