SendRequest
This type can contain the following fields:
| field | type | info | 
|---|---|---|
| account | String | |
| attachments | List of v1.JsonAttachment | |
| is_for_story | boolean | set to true when replying to a story | 
| members | List of v1.JsonAddress | Optionally set to a sub-set of group members. Ignored if recipientGroupId isn’t specified | 
| mentions | List of v1.JsonMention | |
| messageBody | String | |
| previews | List of v1.JsonPreview | |
| quote | v1.JsonQuote | |
| recipientAddress | v1.JsonAddress | |
| recipientGroupId | String | |
| timestamp | Long | |
| username | String |