await AppendManyAsync(Enumerable.Repeat(ev ?? throw new ArgumentNullException(nameof(ev)), 1));
storage = new Guid(Enumerable.Repeat(fill, 16).ToArray());
.Zip(Enumerable.Repeat(FailureMessage(Length), Length));
await AppendManyAsync(Enumerable.Repeat(ev ?? throw new ArgumentNullException(nameof(ev)), 1));
storage = new Guid(Enumerable.Repeat(fill, 16).ToArray());
.Zip(Enumerable.Repeat(FailureMessage(Length), Length));