history.add(LlmMessage.user("AAAA")); // 4
        history.add(LlmMessage.assistant("BBBBBB")); // 6
        final LlmChatRequest request = new LlmChatRequest();
        client.testAddHistoryWithBudget(request, history, 10);
        assertEquals(2, request.getMessages().size());
        assertEquals("AAAA", request.getMessages().get(0).getContent());