Blank ruby class

blank.rb

class Blank
    core_methods = %w(__id__ __send__ object_id instance_eval methods class nil? is_a?
      respond_to?)
    instance_methods.each {|m| undef_method(m) unless core_methods.include?(m.to_s)}

    def respond_to_missing?
      true
    end

    def method_missing(name, *args, &block)
      puts name
    end
end