Hi Imants,

I fogot to add that the mentioned data constructor becomes visible in the haddoc section Instances for the exported BarIO monad.

I would like to see that there is such an instance but without details about data constructor.

Probably, the issue is more related to that how the BarIO type is shown in the documenation.

On level of the module, where the QueueStrategy instance is defined, I can regulate the export list somehow.

Thanks
David