{!> ../../docs_src/body_nested_models/tutorial002.py!}
```

////

## Set types

But then we think about it, and realize that tags shouldn't repeat, they would probably be unique strings.

And Python has a special data type for sets of unique items, the `set`.

Then we can declare `tags` as a set of strings:

//// tab | Python 3.10+

```Python hl_lines="12"
{!> ../../docs_src/body_nested_models/tutorial003_py310.py!}

				return
			}
		case "Tags":
			var zb0002 uint32
			zb0002, err = dc.ReadArrayHeader()
			if err != nil {
				err = msgp.WrapError(err, "Tags")
				return
			}
			if cap(z.Tags) >= int(zb0002) {
				z.Tags = (z.Tags)[:zb0002]
			} else {
				z.Tags = make([]BatchJobKV, zb0002)
			}
			for za0001 := range z.Tags {
				err = z.Tags[za0001].DecodeMsg(dc)
				if err != nil {

import org.w3c.dom.Node;

public class PrunedTag {
    private final String tag;
    private String id;
    private String css;
    private String attrName;
    private String attrValue;

    public PrunedTag(final String tag) {
        this.tag = tag;
    }

    public boolean matches(final Node node) {
        if (tag.equalsIgnoreCase(node.getNodeName())) {
            if (attrName != null) {

                }
            }
            anchorList = convertChildUrlList(anchorList);
        } catch (final Exception e) {
            logger.warn("Could not parse anchor tags.", e);
        }

        final List<String> urlList = new ArrayList<>(anchorList.size());
        for (final RequestData requestData : anchorList) {
            urlList.add(requestData.getUrl());
        }

        private final HttpServletRequest request;

        private final String[] tags;

        protected RequestParameter(final HttpServletRequest request, final String query, final String[] tags, final String[] fields,
                final int num) {
            this.query = query;
            this.tags = tags;
            this.fields = fields;
            this.num = num;
            this.request = request;

<?xml version="1.0" encoding="UTF-8"?>
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
  <ShortName>Fess</ShortName>
  <Description>Full Text Search for Your Documents.</Description>
  <Tags>Full Text Search</Tags>
  <Contact>******@****.***</Contact>
  <SearchForm>http://localhost:8080/fess/</SearchForm>
  <Url type="text/html" template="http://localhost:8080/fess/search?q={searchTerms}"/>
  <InputEncoding>UTF-8</InputEncoding>

    name: str
    description: str | None = None
    price: float
    tax: float = 10.5
    tags: list[str] = []


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
}


@app.get("/items/{item_id}", response_model=Item, response_model_exclude_unset=True)

	GOPATH = ""

	// GOROOT - GOROOT value at the time of build.
	GOROOT = ""

	// Version - version time.RFC3339.
	Version = "DEVELOPMENT.GOGET"

	// ReleaseTag - release tag in TAG.%Y-%m-%dT%H-%M-%SZ.
	ReleaseTag = "DEVELOPMENT.GOGET"

	// CommitID - latest commit id.
	CommitID = "DEVELOPMENT.GOGET"

	// ShortCommitID - first 12 characters from CommitID.
	ShortCommitID = "DEVELOPMENT.GOGET"

def get_openapi_operation_metadata(
    *, route: routing.APIRoute, method: str, operation_ids: Set[str]
) -> Dict[str, Any]:
    operation: Dict[str, Any] = {}
    if route.tags:
        operation["tags"] = route.tags
    operation["summary"] = generate_operation_summary(route=route, method=method)
    if route.description:
        operation["description"] = route.description

    }

    @Override
    public SuggestItem parseSearchWords(final String[] words, final String[][] readings, final String[] fields, final String[] tags,
            final String[] roles, final long score, final ReadingConverter readingConverter, final Normalizer normalizer,
            final SuggestAnalyzer analyzer, final String[] langs) {
        try {