usestd::time::SystemTime;/// Returns the current UNIX timestamp in seconds.
////// # Returns
/// The number of seconds since the UNIX epoch (1970-01-01 00:00:00 UTC).
////// # Panics
/// Panics if the system time is before the UNIX epoch.
pubfntimestamp()->u64{matchSystemTime::now().duration_since(SystemTime::UNIX_EPOCH){Ok(n)=> n.as_secs(),Err(_)=>panic!("SystemTime before UNIX EPOCH!"),}}