/lib/udev/rules.d/60-openobex.rules is in libopenobex2 1.7.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | #udev script to make USB CDC devices with OBEX accessible to users
ACTION=="add", SUBSYSTEM=="usb", PROGRAM="/usr/sbin/obex-check-device $attr{idVendor} $attr{idProduct}", MODE="660", GROUP="plugdev"
|