def METHOD_NAME(client, response):
    response.get(f"https://api.mollie.com/v2/payments/{PAYMENT_ID}", "payment_single")
    payment = client.payments.get(PAYMENT_ID)
    with pytest.raises(IdentifierError) as excinfo:
        payment.refunds.get("invalid")
    assert str(excinfo.value) == "Invalid Refund ID 'invalid', it should start with 're_'."