37 pub const FSEC_PER_SEC: u64 = 1000000000000000;
189     micros: u64,
195     pub const fn from_micros(micros: u64) -> Duration {  in from_micros()
200     pub const fn from_millis(millis: u64) -> Duration {  in from_millis()
207     pub const fn from_secs(secs: u64) -> Duration {  in from_secs()
214     pub const fn millis(&self) -> u64 {  in millis()  argument
219     pub const fn micros(&self) -> u64 {  in micros()  argument
224     pub const fn secs(&self) -> u64 {  in secs()  argument
229     pub const fn total_millis(&self) -> u64 {  in total_millis()  argument
234     pub const fn total_micros(&self) -> u64 {  in total_micros()  argument
284         Duration::from_micros(self.micros * rhs as u64)  in mul()
290         self.micros *= rhs as u64;  in mul_assign()
298         Duration::from_micros(self.micros / rhs as u64)  in div()
304         self.micros /= rhs as u64;  in div_assign()
338         Duration::from_micros(other.as_secs() * 1000000 + other.subsec_micros() as u64)  in from()