How to query results from Dropbox Activity


I have been trying to use the DropBox activities and I was not able to figure it out the syntax to query the results.

Also failed to find any good documentation giving more details on that.

Does anyone have any tips where I can get more details on what this activity should receive as query? My final goal is to retrieve all files from a specified folder in Dropbox and select only the latest one.

Thank you very much for the support.