devise

https://github.com/plataformatec/devise

Ruby

Flexible authentication solution for Rails with Warden.

Mail::Message#mark_for_delete=

Sets whether this message should be deleted at session close (i.e.
after #find). Message will only be deleted if messages are retrieved
using the #find_and_delete method, or by calling #find with
:delete_after_find set to true.

Source | Google | Stack overflow

Edit

git clone [email protected]:plataformatec/devise.git
cd devise
open

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Mail--Message-mark_for_delete--for-pr

# Commit to git

git add git commit -m "better docs for Mail::Message#mark_for_delete="

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Mail--Message-mark_for_delete--for-pr

hub pull-request

# Celebrate!