# The CommentObject object

For activities, this contains the activity recorded for the action.
 For comments, this contains the comment details.
 For transition requests, this contains the transition request details.

## Attributes

- `creation_timestamp` (int64)
  Creation time of the object, as a Unix timestamp in milliseconds.
  Example: `1594437249910`
- `user_id` (string, email)
  The username of the user that created the object.
  Example: `jane.doe@example.com`
- `activity_type` (string)
  Possible values:
  - `APPLIED_TRANSITION`
  - `REQUESTED_TRANSITION`
  - `CANCELLED_REQUEST`
  - `APPROVED_REQUEST`
  - `REJECTED_REQUEST`
  - `NEW_COMMENT`
  - `SYSTEM_TRANSITION`
- `comment` (string)
  User-provided comment associated with the activity, comment, or transition request.
  Example: `This version is great!`
  Constraints: `[ 1 .. 65535 ] characters`
- `last_updated_timestamp` (int64)
  Time of the object at last update, as a Unix timestamp in milliseconds.
  Example: `1594437549910`
- `from_stage` (string)
  Source stage of the transition (if the activity is stage transition related). Valid values are:
   
   * `None`: The initial stage of a model version.
   
   * `Staging`: Staging or pre-production stage.
   
   * `Production`: Production stage.
   
   * `Archived`: Archived stage.
- `to_stage` (string)
  Target stage of the transition (if the activity is stage transition related). Valid values are:
   
   * `None`: The initial stage of a model version.
   
   * `Staging`: Staging or pre-production stage.
   
   * `Production`: Production stage.
   
   * `Archived`: Archived stage.
- `system_comment` (string)
  Comment made by system, for example explaining an activity of type `SYSTEM_TRANSITION`. It usually describes a side effect, such as a version being archived as part of another version's stage transition, and may not be returned for some activity types.
- `available_actions` (array of string)
  Array of actions on the activity allowed for the current viewer.
  Possible values:
  - `APPROVE_TRANSITION_REQUEST`
  - `REJECT_TRANSITION_REQUEST`
  - `CANCEL_TRANSITION_REQUEST`
  - `EDIT_COMMENT`
  - `DELETE_COMMENT`
- `id` (string, uuid)
  Unique identifier for the object.
  Example: `6fc74c92704341aaa49e74dcc6031057`

## Example

```json
{
  "creation_timestamp": 1594437249910,
  "user_id": "jane.doe@example.com",
  "activity_type": "APPLIED_TRANSITION",
  "comment": "This version is great!",
  "last_updated_timestamp": 1594437549910,
  "from_stage": "string",
  "to_stage": "string",
  "system_comment": "string",
  "available_actions": [
    "APPROVE_TRANSITION_REQUEST"
  ],
  "id": "6fc74c92704341aaa49e74dcc6031057"
}
```