/// <summary>
///
/// </summary>
/// <param name="subscriptionId"></param>
/// <param name="groupId"></param>
/// <param name="previuslyAssignedGroup"></param>
/// <returns></returns>
public async Task MarkGroupAsAssigned(Guid subscriptionId, Guid groupId, Guid?previuslyAssignedGroup)
{
await _subscriptionClient.MarkGroupAsAssigned(subscriptionId, groupId, previuslyAssignedGroup);
}