{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "ChatMessage",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "The unique identifier for the message."
    },
    "body": {
      "type": "object"
    },
    "citations": {
      "type": "array",
      "description": "Sources referenced in the Copilot response."
    },
    "createdDateTime": {
      "type": "string",
      "description": "The timestamp when the message was created."
    }
  }
}