I am trying to convert a string to integer using String.toInt. However, when I want to bind the result to a variable and then do some simple math with it I get this error:

> 
> Function `add` is expecting the 2nd argument to be:
> 
> 
> 
> ```
> Int
> 
> ```
> 
> But it is:
> 
> 
> 
> ```
> Result String Int
> 
> ```
> 
> 

How can I just extract the integer part of the result?