Veeam ONE is issuing APIs to registered vCenters and acquiring virtual machine information.

In the Veeam ONE Monitor Summary, there are questions about the display of "CPU USAGE", "MEMORY USAGE", and "GUEST DISK USAGE".
Specifically, what APIs are issued to vCenter to obtain this information?
Are you referring to a MIB file or the like?
Kind Regards,
Asahi,
Climb Inc.