| Value | Meaning |
|---|---|
| home | The annotated function will only be allowed to trigger if the event happened in a home channel, where applicable. Not all events carry channels. |
| guest | The annotated function will only be allowed to trigger if the event happened in a guest channel, where applicable. Not all events carry channels. |
| any | The annotated function will be allowed to trigger regardless of channel. |
Whether an annotated function should be allowed to trigger on events in only home channels or in guest ones as well.