def METHOD_NAME(self):
    self.req = HttpRequest()
    NOW = datetime_from_timestamp(iat_now())
    EXP = datetime_from_timestamp(exp_from_now(33))
    self.rp_conf = FederationEntityConfiguration.objects.create(**rp_conf)
    self.ta_fes = FetchedEntityStatement.objects.create(
        sub=TA_SUB,
        iss=TA_SUB,
        exp=EXP,
        iat=NOW,
    ) 
    metadata = deepcopy(op_conf["metadata"])
    self.trust_chain = TrustChain.objects.create(
        sub=op_conf["sub"],
        exp=EXP,
        jwks = [],
        metadata=metadata,
        status="valid",
        trust_anchor=self.ta_fes,
        is_active=True,
    )