@classmethod
def default_contact_binary(cls, *args, **kwargs):
    """
        For convenience, this function is available at the top-level as
        <phoebe.default_contact_binary> as well as
        <phoebe.frontend.bundle.Bundle.default_contact_binary>.

        This is a shortcut to <phoebe.frontend.bundle.Bundle.default_binary>
        but with `contact_binary` set to True.
        """
    return cls.default_binary(*args, contact_binary=True, **kwargs)
