code: func (t *Timedelta) Abs() Timedelta {
  	return Timedelta{
  		Days:         abs(t.Days),
  		Seconds:      abs(t.Seconds),
  		Microseconds: abs(t.Microseconds),
  		Milliseconds: abs(t.Milliseconds),
  		Minutes:      abs(t.Minutes),
  		Hours:        abs(t.Hours),
  		Weeks:        abs(t.Weeks),
  	}
  }
docs: // Abs returns the absolute value of t