If the class Name were in a different file, you would just require that file first
class Name
attr_accessor :given_name, :family_name
end
////////////////
File: address.rb
#!/usr/bin/env ruby
require 'name'
class Address < Name
attr_accessor :street, :city, :state, :country
end
a = Address.new
puts a.respond_to?(:given_name)
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