public static void UpdateClaims <TAccount>(this UserAccountService <TAccount> svc, Guid accountID, IEnumerable <Claim> additions = null, IEnumerable <Claim> deletions = null)
where TAccount : UserAccount
{
if (svc == null)
{
throw new ArgumentNullException("account");
}
svc.UpdateClaims(accountID, new UserClaimCollection(additions), new UserClaimCollection(deletions));
}