/** Get the duration in the specified unit.
@code
// Get this duration as days
double days = duration.getDurationIn(Day);
// Get this duration as minutes
double minutes = duration.getDurationIn(Minute);
// Get this duration as a multiple of the given duration
double durationAs = duration.getDurationIn(duration); // Should be 1.0, of course
@endcode */
inline double getDurationIn(const Duration & other) const { return preciseDuration() / other.preciseDuration(); }
