fn current_time_in_nanoseconds() -> u128 {
    SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .unwrap()
        .as_nanos()
}
// Helper function that returns the current nanoseconds since the UNIX epoch
Helper function that returns the current nanoseconds since the UNIX epoch
Helper function that returns the current nanoseconds since the UNIX epoch
fn current_time_in_nanoseconds() -> u128 {
    SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .unwrap()
        .as_nanos()
}
fn current_time_in_nanoseconds ( ) -> u128 { SystemTime :: now ( ) . duration_since ( UNIX_EPOCH ) . unwrap ( ) . as_nanos ( ) }
Helper function that returns the current nanoseconds since the UNIX epoch
Helper function that returns the current nanoseconds since the UNIX epoch