pub fn stop(mut self) -> Duration {
        self.running = false;
        self.duration
            .add_assign(Instant::now().sub(self.last_start_time));
        self.duration
    }
/// Stops the stopwatch and returns the duration
Stops the stopwatch and returns the duration
Stops the stopwatch and returns the duration
pub fn stop(mut self) -> Duration {
        self.running = false;
        self.duration
            .add_assign(Instant::now().sub(self.last_start_time));
        self.duration
    }
pub fn stop ( mut self ) -> Duration { self . running = false ; self . duration . add_assign ( Instant :: now ( ) . sub ( self . last_start_time ) ) ; self . duration }
Stops the stopwatch and returns the duration
Stops the stopwatch and returns the duration
mut self