How to fill in multiple lines in a textarea with cucumber

If you want to fill in textareas with multiple lines of text (containing line breaks / new lines) you can use Cucumber's docstrings Show archive.org snapshot :

And I fill in "Comment" with:
  """
  This is a long comment.
  With multiple lines.

  And paragraphs.
  """

The step definition is part of the spreewald Show archive.org snapshot gem