def METHOD_NAME(results: dict, log: utils.IndentedLog) -> None:
    """Remove all result keys that start with an underscore."""
    for key, value in list(results.items()):
        if key.startswith('_'):
            log("Removing temp key: '{}'".format(key))
            del results[key]
        if isinstance(value, dict):
            METHOD_NAME(value, log)