options to apply to a send request
| Name | Type | Description | Notes |
|---|---|---|---|
| ttl_params | TTLParams | [optional] | |
| reliable | bool | whether to send an item reliably, i.e., with retries | [optional] [default to True] |
| tags | dict(str, str) | a structure for optional file tags | [optional] |
| delivery_hints | DeliveryHints | [optional] |