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This would allow us to define some default functions(methods) that users could choose to over-ride.

For example, we could have a default parse_config function that looks like:

def parse_config(config: dict) -> argparse.Namespace:
    """Generate an arguments Namespace from the analysis config file"""

    test_args = test_args = OrderedDict([(k.replace('-', '_'), v) for k, v in config.items()])
    test_args = argparse.Namespace(**test_args)

return test_args

Which spoofs the user defining a parse_args function and parsing command-line options with argparse.