/usr/lib/neard/tools/monitor-near is in neard-tools 0.16-0.1.
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 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | #!/usr/bin/python
from __future__ import absolute_import, print_function, unicode_literals
import gobject
import dbus
import dbus.mainloop.glib
def property_changed(interface, changed, invalidated, path):
	iface = interface[interface.rfind(".") + 1:]
	for name, value in changed.iteritems():
		val = str(value)
		print("{%s.PropertyChanged} [%s] %s = %s" % (iface, path, name,
									val))
def interfaces_added(path, interfaces):
	for iface, props in interfaces.iteritems():
		print("{Added %s} [%s]" % (iface, path))
		for name, value in props.iteritems():
			print("      %s = %s" % (name, value))
def interfaces_removed(path, interfaces):
	for iface in interfaces:
		print("{Removed %s} [%s]" % (iface, path))
if __name__ == '__main__':
	dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
	bus = dbus.SystemBus()
	bus.add_signal_receiver(property_changed, bus_name="org.neard",
			dbus_interface="org.freedesktop.DBus.Properties",
			signal_name="PropertiesChanged",
			path_keyword="path")
	bus.add_signal_receiver(interfaces_added, bus_name="org.neard",
			dbus_interface="org.freedesktop.DBus.ObjectManager",
			signal_name="InterfacesAdded")
	bus.add_signal_receiver(interfaces_removed, bus_name="org.neard",
			dbus_interface="org.freedesktop.DBus.ObjectManager",
			signal_name="InterfacesRemoved")
	mainloop = gobject.MainLoop()
	mainloop.run()
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