<?php  namespace App\Enums;  enum SurveyType: int { 	case IZZ = 1;  	case PULS = 2;  	case PPI = 3;  	case BA = 4;  	case InternalBA = 5;  	public static function selectableSurveys(): array 	{ 		return [ 			self::IZZ, 			self::PPI, 			self::BA, 		]; 	}  	public static function baSurveyTypes(): array 	{ 		return [ 			self::BA->value, 			self::InternalBA->value, 			DynamicSurveyType::BA_COMPARATIVE->value, 		]; 	} }