{0 => "NONE", 1 => "IMAGE", 2 => "VIDEO", 3 => "AUDIO", 4 => "HTML", 5 => "PDF", 6 => "CALL", 7 => "STICKER", 8 => "PRESENCE", 9 => "GIFT", 10 => "GROUPBOARD", 11 => "APPLINK", 12 => "LINK", 13 => "CONTACT", 14 => "FILE", 15 => "LOCATION", 16 => "POSTNOTIFICATION", 17 => "RICH", 18 => "CHATEVENT", 19 => "MUSIC", 20 => "PAYMENT", 21 => "EXTIMAGE", 22 => "FLEX"}
Set.new([NONE, IMAGE, VIDEO, AUDIO, HTML, PDF, CALL, STICKER, PRESENCE, GIFT, GROUPBOARD, APPLINK, LINK, CONTACT, FILE, LOCATION, POSTNOTIFICATION, RICH, CHATEVENT, MUSIC, PAYMENT, EXTIMAGE, FLEX]).freeze