code: def StartDiscovery(self):
      '''Start discovery
      '''
      adapter = mockobject.objects[self.path]
  
      adapter.props[ADAPTER_IFACE]['Discovering'] = dbus.Boolean(True,
                                                                 variant_level=1)
      adapter.EmitSignal(ADAPTER_IFACE, 'PropertyChanged', 'sv', [
          'Discovering', dbus.Boolean(True, variant_level=1),
      ]f StartDiscovery(self):
      '''Start discovery
      '''
      adapter = mockobject.objects[self.path]
  
      adapter.props[ADAPTER_IFACE]['Discovering'] = dbus.Boolean(True,
                                                                 variant_level=1)
      adapter.EmitSignal(ADAPTER_IFACE, 'PropertyChanged', 'sv', [
          'Discovering', dbus.Boolean(True, variant_level=1),
      ])
docs: Start discovery