in clock-bound-d/src/response.rs [208:214]
fn build_response_now(header: Vec<u8>, ceb_data: &ClockErrorBound) -> Vec<u8> {
let mut response: Vec<u8> = header;
let (earliest, latest): (u64, u64) = clockbound_now(ceb_data.ceb);
response.write_u64::<NetworkEndian>(earliest).unwrap();
response.write_u64::<NetworkEndian>(latest).unwrap();
response
}