 
   We can use the `:label` option to decorate the output:
 
-      IO.inspect 1..100, label: "a wonderful range"
+      IO.inspect(1..100, label: "a wonderful range")
 
   Prints:
 

  ## Examples

      stacktrace = [{MyApp, :main, 1, [file: 'my_app.ex', line: 4]}]
      IO.warn "variable bar is unused", stacktrace
      #=> warning: variable bar is unused
      #=>   my_app.ex:4: MyApp.main/1


      |> IO.inspect(label: "before")
      |> Enum.map(&(&1 * 2))
      |> IO.inspect(label: "after")
      |> Enum.sum()

  Prints:

