Piotr Bakalarski

Hi, I checked, and dropping `is Iterable` causes some tests to fail. There seems to a conceptual issue here. [Kotlin iterables](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-iterable/) are defined as: > Classes that inherit from this...

AD1. A transistor-output optocoupler should also work. I used what I had laying around. AD2. The ground level is the same - see 12V terminal connections. I used an optocoupler...

I can see that this was already fixed in _Extra field when cloning ParquetFile (#866)_. Could you release a new version of the library?

This issue had me waste a good few hours of work trying to understand why my validation loop did not run. Given that the current status is > For these...