If true, generate and share a media key for this participant,
and emit MatrixRTCSessionEvent.EncryptionKeyChanged when
media keys for other participants become available.
OptionaluseLegacyMemberEvents
useLegacyMemberEvents?:boolean
Lets you configure how the events for the session are formatted.
legacy: use one event with a membership array.
MSC4143: use one event per membership (with only one membership per event)
More details can be found in MSC4143 and by checking the types:
CallMembershipDataLegacy and SessionMembershipData
If true, generate and share a media key for this participant, and emit MatrixRTCSessionEvent.EncryptionKeyChanged when media keys for other participants become available.