| Name | Description | Type | Additional information |
|---|---|---|---|
| activityId | string |
None. |
|
| user | ChannelAccount |
None. |
|
| bot | ChannelAccount |
None. |
|
| conversation | ConversationAccount |
None. |
|
| channelId | string |
None. |
|
| serviceUrl | string |
None. |