def METHOD_NAME(self, include_subscribers=False):
    """
    Returns the subset of counterparts. In some cases, we are interested in
    obtaining information about the subset of subscribers contacts.
    This method also allows one to get the subset of counterparts together
    with subscribers by turning the `include_subscribers` flag to `True`.
    Parameters
    ----------
    include_subscribers: bool, default True
        Wether to include the list of subscribers in the subset as well.
    """
    return _ContactBalanceSubset(
        contact_balance=self, include_subscribers=include_subscribers
    )