updateWaitingParticipants()

updateWaitingParticipants({sessionId, {updates}, sessionId, {updates}})

Applies the specified updates to the specified waiting participants. See updateWaitingParticipant() for a more detailed description.

Accepts a special '*' ID value, which means "all waiting participants, other than the ones also independently specified".

Returns a Promise that resolves to { ids }, where ids is an array of the updated waiting participants.