Where is the StructuredOutputParser? about langchain-java HOT 3 CLOSED

void testStructuredOutputParserWithLLM() {
    var outputParser = createOutputParser();
    var prompt = new PromptTemplate(
            "answer the users question as best as possible.\n{format_instructions}\n{question}",
            List.of("question"),
            Map.of("format_instructions", outputParser.getFormatInstructions()));

    var llm = OpenAI.builder().temperature(0).build().init();
    var input = prompt.formatPrompt(Map.of("question", "what's the capital of france?"));
    var output = llm.call(input.toString());

    var actual = outputParser.parse(output);
    var expected = new ObjectMapper().createObjectNode()
            .put("answer", "Paris")
            .put("source", "https://www.worldatlas.com/articles/what-is-the-capital-of-france.html");
    assertEquals(expected, actual);
}