def METHOD_NAME(self, exclude_orgs=None):
    """Returns a list of Organisations of which these organisations are the content owner.
    Includes self, is recursive.
    The exclude_orgs parameter is used to avoid recursive calls that
    can happen in case there are organisations that set each other as
    content owned organisations.
    """
    Organisation = apps.get_model('rsr.organisation')
    result = set()
    for org in self:
        result = result | set(
            org.METHOD_NAME(exclude_orgs=exclude_orgs).values_list('pk', flat=True)
        )
    return Organisation.objects.filter(pk__in=result).distinct()