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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _init_pluginmanager(self):
 """ Initialize PluginManager and load run wide plugins. """

        self.pluginmanager = PluginManager(logger=self.logger)
        self.logger.debug("Registering execution wide plugins:")
        self.pluginmanager.load_default_run_plugins()
        self.pluginmanager.load_custom_run_plugins(self.args.plugin_path)
        self.logger.debug("Execution wide plugins loaded and registered.")