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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 run(self, command_name=None, config_updates=None, named_configs=(), meta_info=None, options=None):
 """ Run the main function of the experiment or a given command. Parameters command_name : str, optional Name of the command to be run. Defaults to main function. config_updates : dict, optional Changes to the configuration as a nested dictionary named_configs : list[str], optional list of names of named_configs to use meta_info : dict, optional Additional meta information for this run. options : dict, optional Dictionary of options to use Returns ------- sacred.run.Run the Run object corresponding to the finished run """

        run = self._create_run(command_name, config_updates, named_configs,
                               meta_info, options)
        run()
        return run