Short answer:

 There's no good reason to and I've removed it. 

Longer answer: 

I think you mean that there's no reason to show that line 78 is a string, as it is so declared on line 77. 

This README was initially in the form of notes to myself as I developed with the gem. I messed this up when I was first using the gem. I made account_id an integer and couldn't figure out why it would not pull an account. So I wrote to myself, its a string. As if the non-numeric chars weren't clear enough...