| Name | Type | Description | Notes |
|---|---|---|---|
| start_date | datetime | [optional] | |
| end_date | datetime | [optional] | |
| type | str | [optional] | |
| from_user | str | Only used by 'forwarding' period types | [optional] |
| recipient | TimelineRecipient | [optional] | |
| flattened_recipients | list[TimelineRecipient] | Only used by 'historical' period types | [optional] |