public static IOAuthRemoteServerAccount GetOAuthAccount(this IEntitySession session, string serverName, string accountName = null)
{
if (accountName == null)
{
var stt = session.GetOAuthSettings();
accountName = stt.DefaultAccountName;
}
var accountQuery = session.EntitySet <IOAuthRemoteServerAccount>().Where(a => a.Server.Name == serverName && a.Name == accountName);
var act = accountQuery.FirstOrDefault();
return(act);
}