I am a mentor on Exercism.IO. I had made a suggestion about using
do_XXX as the defp inner function of XX
They asked about other conventions. Do we have a standard list?
I could suggest pointing Credo at your code…
I cannot find it again, but I recall @josevalim saying (somewhere on this forum) that where possible they’re moving away from using do_xxx and instead using either a private xxx function with a different arity (e.g. an accumulator as extra arg) or a more appropriately named private function.
I would suggest to use the code formatter + Credo 
Whoa, I was not aware of those pages.
Are there any points in those style guides which are not enforced by the code formatter?
