How to identify team member folder in the

Yes, but you'll need to make a second call to the API. 

First, check whether one of the entries in your response from the list_folder call contains a `parent_shared_folder_id` property. If not, then you know it's not a team folder. 

If yes, then use the `parent_shared_folder_id` to call the /sharing/get_folder_metadata endpoint (here's the API Explorer link, too), which will contain an "is_team_folder" property set to true or false.