This article is all about saying that Elixir 1.6.3 supports comments in middle of |> , when, | still you do mix format . a. Comments in the middle of pipelinesI assume that you are in the Elixir version of <1.6.3 Create a file comment.ex and add the following code inside the file defmodule Comment do def square(number), do: number * number def cube(number), do: number * number * numberdef run(numb