pickle_outbound_group_session
actual fun pickle_outbound_group_session(session: OlmOutboundGroupSessionPointer, key: ByteArray, pickled: ByteArray): ULong
actual fun pickle_outbound_group_session(session: OlmOutboundGroupSessionPointer, key: ByteArray, pickled: ByteArray): ULong
expect fun pickle_outbound_group_session(session: OlmOutboundGroupSessionPointer, key: ByteArray, pickled: ByteArray): ULong