Optional
props: Partial<{ Optional
channelOptional
channelWhich channel type, RTM_CHANNEL_TYPE_STREAM or RTM_CHANNEL_TYPE_MESSAGE
Optional
intervalOnly valid when in interval mode
Optional
publisherThe user who triggered this event.
Optional
snapshotOnly valid when receive snapshot event
Optional
stateThe states count
Optional
stateThe user states
Optional
typeIndicate presence event type
The channel which the presence event was triggered