use iocutil::prelude::*;
fn main() {
let c = ContentHash::of_file(r"C:\Windows\notepad.exe").unwrap();
println!("notepad.exe => {:?}", c);
let mut hasher = Hasher::new();
let mut res = reqwest::get("https://example.com/").unwrap();
std::io::copy(&mut res, &mut hasher).unwrap();
let c: ContentHash = hasher.digests();
println!("example.com => {:?}", c);
}