public abstract class RoleRequirement : IAuthorizationRequirement
{
    internal string[] CheckedRoles { get; }

    public RoleRequirement(string[] checkedRoles)
    {
        CheckedRoles = checkedRoles;
    }
}

public abstract class ElevatedRoleRequirement : RoleRequirement
{
    internal string[] ElevatedRoles { get; }

    public ElevatedRoleRequirement(string[] elevatedRoles, string[] checkedRoles)
    : base(checkedRoles)
    {
        ElevatedRoles = elevatedRoles;
    }
}