Devices API not returning list of devices

I’m making the following URL “https://api.zoom.us/v2/devices” call in postman this returns following details

set scope : device:read:admin ,device:write:admin in Server-to-Server o-auth

{
“page_size”: 0,
“page_number”: 0,
“page_count”: 0,
“total_records”: 0,
“next_page_token”: “”,
“devices”:
}

Status Code : 200OK

Can you please helps us in getting Devices API endpoint and getting list of devices