public T SingleOrDefaultInto <T>(T instance, Sql sql)
 {
     return(RetryPolicy.ExecuteAction(() => InternalDb.SingleOrDefaultInto(instance, sql)));
 }
 public T SingleOrDefaultInto <T>(T instance, string sql, params object[] args)
 {
     return(RetryPolicy.ExecuteAction(() => InternalDb.SingleOrDefaultInto(instance, sql, args)));
 }