$data */ public static function fromArray(array $data): self { return new self( courseId: $data['course_id'], startDate: $data['start_date'], endDate: $data['end_date'], location: $data['location'], quota: $data['quota'], availableSeats: $data['available_seats'], isUrgent: $data['is_urgent'] ?? false, ); } /** * @return array */ public function toArray(): array { return [ 'course_id' => $this->courseId, 'start_date' => $this->startDate, 'end_date' => $this->endDate, 'location' => $this->location, 'quota' => $this->quota, 'available_seats' => $this->availableSeats, 'is_urgent' => $this->isUrgent, ]; } }