def __init__(self, pipeline):
        """ Constructs a new manager with no plugins loaded. To load settings
        and plugins, call load(). """
        RPObject.__init__(self)
        self._pipeline = pipeline
        self.settings = {}
        self.day_settings = {}
        self.instances = {}
        self.enabled_plugins = set()

        # Used by the plugin configurator and to only load the required data
        self.requires_daytime_settings = True
 Constructs a new manager with no plugins loaded. To load settings
        and plugins, call load(). 
metadrive/render_pipeline/rpcore/pluginbase/manager.py