ransack

https://github.com/activerecord-hackery/ransack

Ruby

Object-based searching.

Mail::Encodings::TransferEncoding.can_transport?

And encoding's superclass can always transport it since the
class hierarchy is arranged e.g. Base64 < 7bit < 8bit < Binary.

Source | Google | Stack overflow

Edit

git clone [email protected]:activerecord-hackery/ransack.git
cd ransack
open

Contribute

# Make a new branch
git checkout -b -your-name--update-docs-Mail--Encodings--TransferEncoding-can_transport--for-pr

# Commit to git
git add git commit -m "better docs for Mail::Encodings::TransferEncoding.can_transport?"

# 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--Encodings--TransferEncoding-can_transport--for-pr
hub pull-request

# Celebrate!