func (r *Recurrence) HasPeriod() bool {
	if r != nil && r.Period != nil {
		return true
	}

	return false
}
func (r *Recurrence) HasPeriod() bool {
	if r != nil && r.Period != nil {
		return true
	}

	return false
}
func ( r * Recurrence ) HasPeriod ( ) bool { if r != nil && r . Period != nil { return true } return false }
// HasPeriod returns a boolean if a field has been set.
HasPeriod returns a boolean if a field has been set .