organization_folders/lib/Model/Organization.php

<?php

namespace OCA\OrganizationFolders\Model;

class Organization implements \JsonSerializable {
    public function __construct(
		private int $id,
        private string $membersGroup,
	) {
    }

    public function getId(): int {
		return $this->id;
	}

    public function getMembersGroup(): string {
		return $this->membersGroup;
	}

	public function jsonSerialize(): array {
		return [
			'id' => $this->id,
			'membersGroup' => $this->membersGroup,
		];
	}
}