[ovirt-users] Is there a way to tell whether a permission set for a VM is inherited using REST API?

Hi everyone! My question is in the subject for the most part. I'm trying to backup a vm parameters, including the linked attributes, namely the permissions. But I don't want the inherited permissions to be included into the backup, I only need the attributes specific to the vm. It looks like there is no difference between the inherited and the vm-specific permissions in the output from /ovirt-engine/api/vms/<vm-id>/permissions service. What is the best way to distinguish the specific permissions from the inherited ones? It seems I can follow the link to the particular permission and see whether the vm attribute is set on it and it points to the VM I need, but that would require numerous REST requests to be done. Is there a more elegant way? Maybe I can somehow filter the output of /ovirt-engine/api/vms/<vm-id>/permissions to only include the required info? Thanks in advance. Best regards, Anton.