What are the parameters of "decorators" in the Chat Endpoint?

In the https://chat.roblox.com/v2/send-message request model there is an area for “decorators” and I’m unsure of what it does.
I’ve tried searching to see if it was a deprecated feature from old roblox but I’ve found nothing so far, please may someone help me find out how to use this?

{
  "message": "string",
  "isExperienceInvite": true,
  "userId": 0,
  "conversationId": 0,
  "decorators": [
    "string" -- not sure what to put in this string
  ]
}