def METHOD_NAME(self, org, user=None):
    kwargs = {"user": user or self.create_user()}
    if org is None:
        # All England
        pass
    elif isinstance(org, PCN):
        kwargs["pcn"] = org
    elif isinstance(org, PCT):
        kwargs["pct"] = org
    elif isinstance(org, Practice):
        kwargs["practice"] = org
    elif isinstance(org, STP):
        kwargs["stp"] = org
    else:
        assert False
    return OrgBookmark.objects.create(**kwargs)