Function ostree::checksum_file_async_future

pub fn checksum_file_async_future<P: IsA<File> + Clone + 'static>(
    f: &P,
    objtype: ObjectType,
    io_priority: i32
) -> Pin<Box<dyn Future<Output = Result<Checksum, Box<dyn Error + Send>>> + 'static>>

Asynchronously compute the SHA-256 checksum of a file.