v7.1
v7.2 v7.1 v7.0 v6.1 v6.0 v5.2
GitHub

Required Files
Namespace
- Module
- Class

Ruby on Rails 7.1.3

preview.rb

actionmailer/lib/action_mailer/preview.rb on GitHub

Required Files

active_support/descendants_tracker

Namespace

Module

ActionMailer
ActionMailer::Previews
ActionMailer::Previews::ClassMethods

Class

ActionMailer::Preview