/// <summary>
 /// Update the Azure SQL Server Active Directory administrator
 /// </summary>
 /// <param name="entity">A list of models to update the list</param>
 /// <returns>A list of the persisted entities</returns>
 protected override IEnumerable <AzureSqlServerActiveDirectoryAdministratorModel> PersistChanges(IEnumerable <AzureSqlServerActiveDirectoryAdministratorModel> entity)
 {
     return(new List <AzureSqlServerActiveDirectoryAdministratorModel>()
     {
         ModelAdapter.DisableAzureADOnlyAuthenticaion(this.ResourceGroupName, this.ServerName)
     });
 }