#[repr(C)]
#[must_use]
pub struct OwnedPtr<T> {
ptr: *mut T,
}
#[repr(C, u8)]
#[must_use]
pub enum MaybeOwnedPtr<T> {
Owned(*mut T),
None,
}
#[no_mangle]
#[must_use]
pub extern "C" fn maybe_consume(input: OwnedPtr<i32>) -> MaybeOwnedPtr<i32> {
}