Getting Current File Name

im using NextCloud desktop client, and im editing the code, i have a case in which im using the slot transmissionProgressSlot() which contains as a parameter the class ProgressInfo
i also have an instance of the class SyncEngine
the question is, how can i get the file name for the file that is currently being processed (upload or download) from these two classes ( SyncEngine or ProgressInfo) ?

@rullzer @camila Can you help with this question regarding the client code?