| Name | Type | Description |
|---|---|---|
| additionalInfo | String -> String | |
| caption | String | |
| challenge_id | String | |
| comments_xid | String | |
| decorator_id | String | |
| description | String | |
| disableComments | Boolean | |
| holiday_event_style_id | Long | |
| holiday_id | String | |
| href | String | |
| impression_id | String | |
| is_longread | Boolean | |
| media | AttachmentMedia | |
| memory_id | Long | |
| motivator_id | String | |
| motivator_variant | String | |
| name | String | |
| native_ad | Boolean | |
| new_challenge | AttachmentChallenge | |
| onBehalfOfGroup | Boolean | |
| ord_data | OrdInfoBean | |
| place | PlaceCreationBean | |
| place_id | String | |
| propagate | Boolean | |
| property | AttachmentProperty | |
| publishAt | String | |
| publishAtMs | Long | |
| publishDaysPaidTopicAsFree | Integer | |
| visibility | MediaTopicVisibilityApi | |
| with_friends | String |