/lib/udev/rules.d/95-upower-wup.rules is in upower 0.99.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Watts Up? Pro Devices
#
SUBSYSTEM=="tty", SUBSYSTEMS=="usb", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ATTRS{serial}=="A80?????", ENV{UPOWER_VENDOR}="Watts Up, Inc.", ENV{UPOWER_PRODUCT}="Watts Up? Pro", ENV{UP_MONITOR_TYPE}="wup"
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