def __init__(self, groups=None):
        super(GroupedRequirements, self).__init__(NamedRequirements)
        self.groups = groups or self.default_groups
        self.filename = None
        self.create_default_groups()
def _convert_objectGUID(item):
    item = uuid.UUID("{{{0!s}}}".format(item)).bytes_le
    item = escape_bytes(item)
    return item