How to pass value to a class that generated by Class.new in ruby

class-new-test.rb

# How to pass value to a class that generated by Class.new in ruby
# ruby で Class.new で生成した class に値を渡す方法
def ClassTemplate(name)
  Class.new do |klass|
    klass.instance_variable_set :@my_name, name
    def hello
      puts "Hello, #{self.class.instance_variable_get(:@my_name)}!"
    end
  end
end
klass1 = ClassTemplate("Jack")
klass2 = ClassTemplate("Taro")
klass1.new.hello # => Hello, Jack!
klass2.new.hello # => Hello, Taro!
klass1.new.hello # => Hello, Jack!
klass2.new.hello # => Hello, Taro!