- `easing` (`function`, default `cubicOut`) — an [easing function](/docs#run-time-svelte-easing)
- `fallback` (`function`) — A fallback [transition](/docs#template-syntax-element-directives-transition-fn) to use for send when there is no matching element being received, and for receive when there is no element being sent.
- `easing` (`function`, default `cubicOut`) — an [easing function](/docs/run-time#svelte-easing)
- `fallback` (`function`) — A fallback [transition](/docs/template-syntax#element-directives-transition-fn) to use for send when there is no matching element being received, and for receive when there is no element being sent.