# File lib/fog/ovirt/models/compute/interfaces.rb, line 14
        def all(filters = {})
          requires :vm
          if vm.is_a? Fog::Compute::Ovirt::Server
            load service.list_vm_interfaces(vm.id)
          elsif vm.is_a? Fog::Compute::Ovirt::Template
            load service.list_template_interfaces(vm.id)
          else
            raise 'interfaces should have vm or template'
          end
        end