}

    @Test
    public void test_setStream() {
        final LlmChatRequest request = new LlmChatRequest();

        final LlmChatRequest result = request.setStream(true);

        assertSame(request, result);
        assertTrue(request.isStream());
    }

    @Test
    public void test_fluentBuilding() {

    }

    /**
     * Sets whether streaming is enabled.
     *
     * @param stream true to enable streaming
     * @return this request for method chaining
     */
    public LlmChatRequest setStream(final boolean stream) {
        this.stream = stream;
        return this;
    }

    /**
     * Gets the thinking budget for models that support thinking tokens.