<?php  namespace App\Services\Pdf\GeneralReport\DataObjects;  use App\Contracts\DemographicDataObject;  class AgeDataObject implements DemographicDataObject { 	protected int $ageUnder30 = 0; 	protected int $ageOver31under40 = 0; 	protected int $ageOver41under50 = 0; 	protected int $ageOver51 = 0;  	public function getAgeUnder30(): int{}  	public function getAgeOver31Under40(): int{}  	public function getAgeOver41Under50(): int{}  	public function getAgeOver51(): int{}  	public function setAgeUnder30(int $value): void{}  	public function setAgeOver31Under40(int $value): void{}  	public function setAgeOver41Under50(int $value): void{}  	public function setAgeOver51(int $value): void{}  	public function hasDataAvailable(): bool{} }