Emitting "Invalid" Attribute

[JasonBock]

#nullable enable

public class HasAsyncIteratorStateMachine<T>
{
    private ValueTask<bool> WaitToReadAsync(CancellationToken cancellationToken = default) =>
        ValueTask.FromResult(true);
	
    private bool TryRead([MaybeNullWhen(false)] out T item)
    {
        item = default!;
        return true;
    }
    
    public virtual async IAsyncEnumerable<T> ReadAllAsync(
        [EnumeratorCancellation] CancellationToken cancellationToken = default)
    {
        while (await WaitToReadAsync(cancellationToken).ConfigureAwait(false))
        {
            while (TryRead(out T? item))
            {
                yield return item;
            }
        }
    }
}

The ReadAllAsync() has an [AsyncIteratorStateMachine] attribute, but this shouldn't be emitted in the mock, similar to other attributes that are ignored in AttributeDataExtensions.GetDescription(), like IteratorStateMachineAttribute.