zgfif

require 'active_model'

class Superhero
  include ActiveModel::Validations

  attr_accessor :name, :age

  def initialize **args
    @name = args[:name]

zgfif

class Arsenal
  def self.hello
    'Hello as class method!'
  end

   def mymy
     'Arsen Wenger'
   end

zgfif

require 'active_model'

class Superhero
  include ActiveModel::Validations
  @@total = []

  attr_reader :name, :age

  def initialize name, age
    @name = name