## List fields { #list-fields }

You can define an attribute to be a subtype. For example, a Python `list`:

{* ../../docs_src/body_nested_models/tutorial001_py310.py hl[12] *}

This will make `tags` be a list, although it doesn't declare the type of the elements of the list.

## List fields with type parameter { #list-fields-with-type-parameter }

    type: minio # valid values are "s3" or "minio"
    bucket: mytest
    prefix: object-prefix1 # 'PREFIX' is optional
    # If your source is the 'local' alias specified to 'mc batch start', then the 'endpoint' and 'credentials' fields are optional and can be omitted
    # Either the 'source' or 'remote' *must* be the "local" deployment
#    endpoint: "http://127.0.0.1:9000"

    }

    /**
     * Builds the query for suggestions.
     * @param q The query string.
     * @param fields The fields to search in.
     * @return The QueryBuilder instance.
     */
    public QueryBuilder buildQuery(final String q, final List<String> fields) {
        try {
            final QueryBuilder queryBuilder;
            if (Strings.isNullOrEmpty(q)) {

                    ComponentUtil.getFessConfig().getSystemProperty("rag.llm.name", "ollama"));

            final Map<String, String[]> fields = parseFieldFilters(request);
            final String[] extraQueries = parseExtraQueries(request);
            final ChatResult result;
            if (fields.isEmpty() && extraQueries.length == 0) {
                result = ComponentUtil.getChatClient().chat(sessionId, message, userId);

            builder.setFetchSource(fields, null);
            queryHelper.processSearchPreference(builder, userBean, String.join(StringUtil.EMPTY, docIds));
            return true;
        });
    }

    /**
     * Updates a single field of a document.
     *
     * @param id The document ID to update
     * @param field The field name to update
     * @param value The new value for the field

    yield Item(name="Portal Gun", price=999.99)
```

For full control over SSE fields (`event`, `id`, `retry`, `comment`), yield `ServerSentEvent` instances:

```python
from collections.abc import AsyncIterable

from fastapi import FastAPI
from fastapi.sse import EventSourceResponse, ServerSentEvent

app = FastAPI()


@app.get("/events", response_class=EventSourceResponse)

        try {
            java.lang.reflect.Field ptypeField = jcifs.dcerpc.DcerpcMessage.class.getDeclaredField("ptype");
            ptypeField.setAccessible(true);
            assertEquals(0, ptypeField.get(msrpcSamrOpenAlias), "ptype should be initialized to 0");

            java.lang.reflect.Field flagsField = jcifs.dcerpc.DcerpcMessage.class.getDeclaredField("flags");

        String[] words = new String[] { "　　　", "エンジン" }; // First word is whitespace only
        String[] fields = new String[] { "content" };

        SuggestAnalyzer analyzer = suggester.settings().analyzer().new DefaultContentsAnalyzer();
        SuggestItem item = defaultContentsParser.parseSearchWords(words, null, fields, null, null, 1, createDefaultReadingConverter(),
                createDefaultNormalizer(), analyzer, null);

    }

    @Test
    public void test_indexFromEmptySearchWord() throws Exception {
        String searchWord = "";
        String[] fields = new String[] { "content" };

        SuggestIndexResponse response = suggester.indexer().indexFromSearchWord(searchWord, fields, null, null, 1, null);

        assertNotNull(response);
        // Empty search word should result in no indexed items

        "colorMode": "value",
        "graphMode": "none",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "mean"
          ],
          "fields": "",
          "values": false
        },
        "showPercentChange": false,
        "text": {},
        "textMode": "auto",
        "wideLayout": true
      },
      "pluginVersion": "10.4.0",