gistfile1.txt

# https://blog.nvisium.com/2015/06/using-rails-5-attributes-api-today-in.html

class Foobar

  def initialize
    @foobar = '123'
  end
  
end

def Foobar(obj)
  case obj
  when Foobar
    obj
  when String
    Foobar.new(somestr)
  end
end