class Test
    def aa
        puts "aa"
    end
end

# Load the Rails application.
require_relative 'application'
require 'test' #Add this

# Initialize the Rails application.
Rails.application.initialize!

 % rails c
Running via Spring preloader in process 62643
Loading development environment (Rails 6.0.3.2)
[1] pry(main)> Test
=> Test

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