cbindgen-0.24.5/tests/rust/include_item.rs - cbindgen - Git at Google

 #[repr(C)]
 struct A {
     x: i32,
     y: f32,
 }

 #[repr(C)]
 struct B {
     data: A,
 }
	#[repr(C)]
	struct A {
	x: i32,
	y: f32,
	}

	#[repr(C)]
	struct B {
	data: A,
	}