public function transform(Member $member)
    {
        return [
            'createdAt' => $member->created_at->toW3cString(),
            'memberCategoryId' => $member->member_category_id,
            'memberCategoryName' => !empty($member->member_category) ? $member->member_category->name : null,
            'memberName' => $member->user->name,
            'id' => $member->id,
            'role' => $member->role,
            'status' => $member->status,
            'preference' => $member->preference,
            'updatedAt' => $member->updated_at->toW3cString(),
            'userId' => $member->user_id,
        ];
    }