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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 get_flake8_options(config_dir='.'):
 # type: (str) -> List[str] """Checks for local config overrides for `flake8` and add them in the correct `flake8` `options` format. :param config_dir: :return: List[str] """

    if FLAKE8_CONFIG_NAME in os.listdir(config_dir):
        flake8_config_path = FLAKE8_CONFIG_NAME
    else:
        flake8_config_path = DEFAULT_FLAKE8_CONFIG_PATH

    return ['--config={}'.format(flake8_config_path)]