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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 _config_parser_to_defaultdict(config_parser):
 """Convert a ConfigParser to a defaultdict. Args: config_parser (ConfigParser):
 A ConfigParser. """

    config = defaultdict(defaultdict)
    for section, section_content in config_parser.items():
        if section != 'DEFAULT':
            for option, option_value in section_content.items():
                config[section][option] = option_value
    return config