Re: Raising custom exceptions and tracking them in proc signatures

[Hlaaftana]

You have been asking a lot of questions that are documented clearly in the 
[manual](https://nim-lang.org/docs/manual.html) and system module 
<https://nim-lang.org/docs/system.html>. There is also a page listing all the 
modules in the [standard library](https://nim-lang.org/docs/lib.html) and also 
an [index](https://nim-lang.org/docs/theindex.html) for all docs.