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use blake2::{Blake2b, Digest};
use std::path::Path;
use std::{fs, io};

pub fn file(path: &Path) -> io::Result<String> {
    let mut file = fs::File::open(path)?;
    let mut hasher = Blake2b::new();
    io::copy(&mut file, &mut hasher)?;
    let hash = hasher.finalize();

    Ok(format!("{:x}", hash))
}