code: def register_service(
          self,
          bundle,
          clazz,
          service,
          properties,
          send_event,
          factory=False,
          prototype=False,
      ):
          # type: (Bundle, Union[List[Any], type, str], object, dict, bool, bool, bool) -> ServiceRegistration
          
          if bundle is None or service is None or not clazz:
              raise BundleException("Invalid registration parameters")
  
          if not isinstance(properties, dict):
              # Be sure we have a valid dictionary
              properties = {}
          else:
              # Use a copy of the given properties
              properties = properties.copy()
  
          # Prepare the class specification
          if not isinstance(clazz, (list, tuple)):
              # Make a list from the single class
              clazz = [clazz]
  
          # Test the list content
          classes = []
          for svc_clazz in clazz:
              if inspect.isclass(svc_clazz):
                  # Keep the type name
                  svc_clazz = svc_clazz.__name__
  
              if not svc_clazz or not is_string(svc_clazz):
                  # Invalid class name
                  raise BundleException(
                      "Invalid class name: {0}".format(svc_clazz)
                  )
  
              # Class OK
              classes.append(svc_clazz)
  
          # Make the service registration
          registration = self._registry.register(
              bundle, classes, properties, service, factory, prototype
          )
  
          # Update the bundle registration information
          bundle._registered_service(registration)
  
          if send_event:
              # Call the listeners
              event = ServiceEvent(
                  ServiceEvent.REGISTERED, registration.get_reference()
              )
              self._dispatcher.fire_service_event(event)
  
          return registration
docs: Registers a service and calls the listeners
  
          :param bundle: The bundle registering the service
          :param clazz: Name(s) of the interface(s) implemented by service
          :param service: The service to register
          :param properties: Service properties
          :param send_event: If not, doesn't trigger a service registered event
          :param factory: If True, the given service is a service factory
          :param prototype: If True, the given service is a prototype service
                            factory (the factory argument is considered True)
          :return: A ServiceRegistration object
          :raise BundleException: An error occurred while registering the service