def parse(dictionary, arguments):
    """
    Given the input dictionary and arguments,
    return a (possibly, modified) dictionary.

    The returned dictionary might be the same (input) instance,
    or a new one.

    :param dictionary: the (raw) input dictionary
    :type  dictionary: Dictionary
    :param arguments: the command line arguments
    :type  arguments: Namespace from argparse
    :rtype: Dictionary
    """
    return dictionary
