def clouds
      content.keys.sort.map do |code_name|
        Shelly::App.new(code_name)
      end if content
    end
def clouds
      content.keys.sort.map do |code_name|
        Shelly::App.new(code_name)
      end if content
    end
Public: Clouds in Cloudfile
 Returns Array of clouds names from Cloudfile
 nil if there is no cloudfile