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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 _load_config(config_path=None):
 """ Load config files. Parameters config_path : None or :obj:`str` or dict See class definition for more information. Returns ------- :obj:`collections.OrderedDict` eDisGo configuration data from config files. """


        config_files = ['config_db_tables', 'config_grid',
                        'config_grid_expansion', 'config_timeseries']

        # load configs
        if isinstance(config_path, dict):
            for conf in config_files:
                config.load_config(filename='{}.cfg'.format(conf),
                                   config_dir=config_path[conf],
                                   copy_default_config=False)
        else:
            for conf in config_files:
                config.load_config(filename='{}.cfg'.format(conf),
                                   config_dir=config_path)

        config_dict = config.cfg._sections

        # convert numeric values to float
        for sec, subsecs in config_dict.items():
            for subsec, val in subsecs.items():
                # try str -> float conversion
                try:
                    config_dict[sec][subsec] = float(val)
                except:
                    pass

        # convert to time object
        config_dict['demandlib']['day_start'] = datetime.datetime.strptime(
            config_dict['demandlib']['day_start'], "%H:%M")
        config_dict['demandlib']['day_start'] = datetime.time(
            config_dict['demandlib']['day_start'].hour,
            config_dict['demandlib']['day_start'].minute)
        config_dict['demandlib']['day_end'] = datetime.datetime.strptime(
            config_dict['demandlib']['day_end'], "%H:%M")
        config_dict['demandlib']['day_end'] = datetime.time(
            config_dict['demandlib']['day_end'].hour,
            config_dict['demandlib']['day_end'].minute)

        return config_dict