sendMessage
open suspend override fun sendMessage(roomId: RoomId, keepMediaInCache: Boolean, builder: suspend MessageBuilder.() -> Unit): String
Puts a message to the outbox.
Return
The transaction id that was used to send the message.
open suspend override fun sendMessage(roomId: RoomId, keepMediaInCache: Boolean, stickyDuration: Duration?, builder: suspend MessageBuilder.() -> Unit): String