/usr/share/python/runtime.d/firmware-tools-gui.rtupdate is in firmware-tools-gui 2.1.14-0ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 | #! /bin/sh
set -e
if [ "$1" = rtupdate ]; then
	pyclean -p firmware-tools-gui /usr/share/firmware-tools
	pycompile -p firmware-tools-gui  /usr/share/firmware-tools
fi
 |