old_contents: import dbus
  
  bus = dbus.SystemBus()
  
  
  manager = dbus.Interface(bus.get_object('org.bluez', '/org/bluez'), 'org.bluez.Manager')
  
  adapter = dbus.Interface(bus.get_object('org.bluez', manager.DefaultAdapter()), 'org.bluez.Adapter')
  
  test = dbus.Interface(bus.get_object('org.bluez', manager.DefaultAdapter()), 'org.bluez.Test')
  
  rfcomm = dbus.Interface(bus.get_object('org.bluez', manager.DefaultAdapter()), 'org.bluez.RFCOMM')
  
  
  def create_service(identifier):
  	try:
  		path = manager.FindService(identifier)
  	except:
  		path = ""
  
  	if (path != ""):
  		return dbus.Interface(bus.get_object('org.bluez', path), 'org.bluez.Service')
  
  transfer = create_service("transfer")
  
  network = create_service("network")
  
  input = create_service("input")
  
  audio = create_service("audio")
  
  headset = create_service("headset")
  
new_contents: import dbus
  
  bus = dbus.SystemBus()
  
  
  dummy = dbus.Interface(bus.get_object('org.bluez', '/org/bluez'), 'org.freedesktop.DBus.Introspectable')
  
  #print dummy.Introspect()
  
  manager = dbus.Interface(bus.get_object('org.bluez', '/org/bluez'), 'org.bluez.Manager')
  
  database = dbus.Interface(bus.get_object('org.bluez', '/org/bluez'), 'org.bluez.Database')
  
  adapter = dbus.Interface(bus.get_object('org.bluez', manager.DefaultAdapter()), 'org.bluez.Adapter')
  
  test = dbus.Interface(bus.get_object('org.bluez', manager.DefaultAdapter()), 'org.bluez.Test')
  
  rfcomm = dbus.Interface(bus.get_object('org.bluez', manager.DefaultAdapter()), 'org.bluez.RFCOMM')
  
  
  def create_service(identifier):
  	try:
  		path = manager.FindService(identifier)
  	except:
  		path = ""
  
  	if (path != ""):
  		return dbus.Interface(bus.get_object('org.bluez', path), 'org.bluez.Service')
  
  echo = create_service("echo")
  
  transfer = create_service("transfer")
  
  network = create_service("network")
  
  input = create_service("input")
  
  audio = create_service("audio")
  
  headset = create_service("headset")
  
subject: Update pre-created objects