ossl_quic_txfc_get_credit_local
uint64_t ossl_quic_txfc_get_credit_local(QUIC_TXFC *txfc, uint64_t consumed);
r = ossl_quic_txfc_get_credit_local(txfc, 0);
conn_r = ossl_quic_txfc_get_credit_local(txfc->parent, consumed);
uint64_t credit = ossl_quic_txfc_get_credit_local(txfc, 0);
if (!TEST_uint64_t_eq(ossl_quic_txfc_get_credit_local(txfc, 0), 500))
if (!TEST_uint64_t_eq(ossl_quic_txfc_get_credit_local(txfc, 0), 2000))
if (!TEST_uint64_t_eq(ossl_quic_txfc_get_credit_local(txfc, 100), 1900))
if (!TEST_uint64_t_eq(ossl_quic_txfc_get_credit_local(txfc, 0), 1500))
if (!TEST_uint64_t_eq(ossl_quic_txfc_get_credit_local(txfc, 0), 1400))
if (!TEST_uint64_t_eq(ossl_quic_txfc_get_credit_local(txfc, 0), 0))