13, Create an instance of the following Person class, set its name attribute to any value you like, and use its instance variable to complete the greeting method. 1 class Person 2 attr_accessor Charlie 3 def greeting # @name puts "hi, my name is #{main}" 6 end 7 end Run 9 some_person 'main' 10 some_person.name 'main' some person. '(main)' Reset