```Python hl_lines="3-16  18"
{!../../../docs_src/metadata/tutorial004.py!}
```

Notice that you can use Markdown inside of the descriptions, for example "login" will be shown in bold (**login**) and "fancy" will be shown in italics (_fancy_).

!!! tip
    You don't have to add metadata for all the tags that you use.

### Use your tags

Use the `tags` parameter with your *path operations* (and `APIRouter`s) to assign them to different tags:

1D44E         ; mapped                 ; 0061          # 3.1  MATHEMATICAL ITALIC SMALL A
1D44F         ; mapped                 ; 0062          # 3.1  MATHEMATICAL ITALIC SMALL B
1D450         ; mapped                 ; 0063          # 3.1  MATHEMATICAL ITALIC SMALL C
1D451         ; mapped                 ; 0064          # 3.1  MATHEMATICAL ITALIC SMALL D
1D452         ; mapped                 ; 0065          # 3.1  MATHEMATICAL ITALIC SMALL E

          ]
        },
        "italian_analyzer": {
          "type": "custom",
          "tokenizer":  "standard",
          "filter": [
            "truncate20_filter",
            "italian_elision",
            "lowercase",
            "italian_stop",
            "italian_keywords",
            "italian_override",
            "italian_stemmer"
          ]
        },

.termynal-comment {
  color: #4a968f;
  font-style: italic;
  display: block;
}

.termy {
  /* For right to left languages */
  direction: ltr;
}

.termy [data-termynal] {
  white-space: pre-wrap;
}

a.external-link {
  /* For right to left languages */
  direction: ltr;
  display: inline-block;
}

a.external-link::after {
  /* \00A0 is a non-breaking space

        "filter" : ["lowercase", "italian_elision"]
      },
      "contents_analyzer_it" : {
        "type" : "custom",
        "tokenizer" : "standard",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "content_length_filter", "limit_token_count_filter", "italian_elision", "italian_stop", "italian_keywords"]
      },
      "contents_reading_analyzer_it" : {

	if err != nil {
		return fmt.Errorf("fetch Istio version: %v", err)
	}

	// return warning if current date is near the EOL date
	if operatorVer.IsEOL() {
		warnMarker := color.New(color.FgYellow).Add(color.Italic).Sprint("WARNING:")
		fmt.Printf("%s Istio %v may be out of support (EOL) already: see https://istio.io/latest/docs/releases/supported-releases/ for supported releases\n",
			warnMarker, operatorVer.OperatorCodeBaseVersion)
	}

        "filter" : ["lowercase", "italian_elision"]
      },
      "contents_analyzer_it" : {
        "type" : "custom",
        "tokenizer" : "standard",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "content_length_filter", "limit_token_count_filter", "italian_elision", "italian_stop", "italian_keywords"]
      },
      "contents_reading_analyzer_it" : {

        "filter" : ["lowercase", "italian_elision"]
      },
      "contents_analyzer_it" : {
        "type" : "custom",
        "tokenizer" : "standard",
        "char_filter" : ["mapping_char"],
        "filter" : ["lowercase", "stopword_en_filter", "content_length_filter", "limit_token_count_filter", "italian_elision", "italian_stop", "italian_keywords"]
      },
      "contents_reading_analyzer_it" : {

            }
        }

        void addIfUpstreamOf(MavenProject mavenProject, List<MavenProject> result) {
            if (dependant == mavenProject) {
                result.add(dependency); // All projects are the statics from this class
            }
        }
    }

    private List<Dependency> getDependencies() {
        List<Dependency> dependencies = new ArrayList<>();
        dependencies.add(new Dependency(B, A));

# https://github.com/apache/lucene-solr/blob/master/lucene/analysis/common/src/resources/org/apache/lucene/analysis/snowball/italian_stop.txt
ad
al
allo
ai
agli
all
agl
alla
alle
con
col
coi
da
dal
dallo
dai
dagli
dall
dagl
dalla
dalle
di
del
dello
dei
degli
dell
degl
della
delle
in
nel
nello
nei
negli
nell
negl
nella
nelle
su
sul