> The documentation for CountTable is autogenerated and lacking (no > "description" explaining how to use CountTable).
This was improved during Hacktoberfest, but it has not yet hit the stable version. For the devel docs of tables module (including a short example how to use `CountTable`), see [here](http://nim-lang.github.io/Nim/tables.html). The problem with your code is that you need to initialize your Tables. Use `initCountTable[char]()`.