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#![allow(deprecated)]
use hex;
use std::hash::{Hash, Hasher, SipHasher};
pub fn to_hex(num: u64) -> String {
hex::encode(&[
(num >> 0) as u8,
(num >> 8) as u8,
(num >> 16) as u8,
(num >> 24) as u8,
(num >> 32) as u8,
(num >> 40) as u8,
(num >> 48) as u8,
(num >> 56) as u8,
])
}
pub fn hash_u64<H: Hash>(hashable: &H) -> u64 {
let mut hasher = SipHasher::new_with_keys(0, 0);
hashable.hash(&mut hasher);
hasher.finish()
}
pub fn short_hash<H: Hash>(hashable: &H) -> String {
to_hex(hash_u64(hashable))
}