def METHOD_NAME(self, **dargs):
    """
    Return a new Attr instance and set properties from dargs
    :param dargs: dict of attributes
    :return: new Attr instance
    """
    new_one = self.Attr(virsh_instance=self.virsh)
    for key, value in list(dargs.items()):
        setattr(new_one, key, value)
    return new_one