schemas/messages/fileObject.json

{
  "title": "messages/fileObject",
  "type": [
    "object"
  ],
  "properties": {
    "id": {
      "type": [
        "string"
      ],
      "description": "The identifier, which can be referenced in API endpoints."
    },
    "object": {
      "type": [
        "string"
      ],
      "description": "The object type, which is always thread.message.file."
    },
    "created_at": {
      "type": [
        "integer"
      ],
      "description": "The Unix timestamp (in seconds) for when the message file was created."
    },
    "message_id": {
      "type": [
        "string"
      ],
      "description": "The ID of the message that the File is attached to."
    }
  }
}