ugly typechecking code.rb

def my_method(arg1, arg2)
  unless Foo == arg1.class
    raise ArgumentError,
      "A Foo is expected for the first argument. An #{arg1.class} was given."
  end
  unless Bar == arg2.class
    raise ArgumentError,
      "A Bar is expected for the first argument. An #{arg2.class} was given."
  end

  puts "The method finished!"
end