public function ppiCheckboxCustomAnswer(array $available_answers, string $title): self 	{ 		$available_answers = [ 			'en' => $available_answers, 			'hr' => $available_answers, 		];  		$title_array = [ 			'en' => $title, 			'hr' => $title, 		];  		return $this->state([ 			'title' => $title_array, 			'available_answers' => $available_answers, 			'type' => QuestionType::CheckboxWithCustomAnswer->value, 		]); 	}