createConversation method
Create a conversation on the given engine. Returns a conversation ID.
Implementation
@override
Future<String> createConversation(
String engineId,
Map<String, dynamic>? config,
) async {
final result = await _methodChannel.invokeMethod<String>(
'createConversation',
{'engineId': engineId, if (config != null) 'config': config},
);
return result!;
}