sendMessageByInboxId method
Returns a map with messageId and the live DM topic (the conversation
that was actually sent to — send is find-or-create, so this is always the
canonical DM topic). topic may be null on platforms that don't surface it.
Implementation
Future<Map<String, dynamic>?> sendMessageByInboxId(String recipientInboxId, dynamic message, String authorityId, String typeId, int versionMajor) {
throw UnimplementedError('sendMessageByInboxId() has not been implemented.');
}