[libvirt-users] how to add/remove emulated usb removable devices to guests

Good day, i was not able to find api to add/remove usb removable devices to guest, i have windows machines and need to plug usb stick with some fs (fat or ntfs) which is image on host, i was found what it is possible and implemented in libvirt https://bugzilla.redhat.com/show_bug.cgi?id=922495, but i can't find how to use this.