test_file.sh

#fish shell
echo >> test.rb "\
class User < ApplicationRecord
  # Assign an API key on create
  before_create do |user|
     user.api_key = user.generate_api_key
  end
 
  # Generate a unique API key
  def generate_api_key
    loop do
        token = SecureRandom.base64.tr('+/=', 'Qrt')
        break token unless User.exists?(api_key: token)
    end
  end
end"