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#[lang = "sized"]
pub trait Sized {}
struct Foo<A, B>(A, B);
impl Foo<i32, f32> {
fn test<X>(self, a: X) -> X {
a
}
}
fn main() {
let a;
a = Foo(123, 456f32);
let b;
b = a.test::<bool>(false);
}
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