/usr/share/ofono/scripts/disable-throttling is in ofono-scripts 1.21-1ubuntu1.
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 8 9 10 11 12 13 14 15 16 17 18  | #!/usr/bin/python3
import dbus, sys
bus = dbus.SystemBus()
if len(sys.argv) == 2:
	path = sys.argv[1]
else:
	manager = dbus.Interface(bus.get_object('org.ofono', '/'),
			'org.ofono.Manager')
	modems = manager.GetModems()
	path = modems[0][0]
print("Disabling transmit power throttling of modem %s ..." % path)
thermal_management = dbus.Interface(bus.get_object('org.ofono', path),
		'org.ofono.sofia3gr.ThermalManagement')
thermal_management.SetProperty("TransmitPowerThrottling", dbus.Boolean(0), timeout = 30)
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