// Read the tag.
    val tagAndClass = source.readByte().toInt() and 0xff
    val tagClass = tagAndClass and 0b1100_0000
    val constructed = (tagAndClass and 0b0010_0000) == 0b0010_0000
    val tag =
      when (val tag0 = tagAndClass and 0b0001_1111) {
        0b0001_1111 -> readVariableLengthLong()
        else -> tag0.toLong()
      }

    // Read the length.

## Tag'ler için Metadata { #metadata-for-tags }

`openapi_tags` parametresiyle, path operation'larınızı gruplamak için kullandığınız farklı tag'ler adına ek metadata da ekleyebilirsiniz.

Bu parametre, her tag için bir sözlük (dictionary) içeren bir liste alır.

Her sözlük şunları içerebilir:

* `name` (**zorunlu**): *path operation*'larda ve `APIRouter`'larda `tags` parametresinde kullandığınız tag adıyla aynı olan bir `str`.

## Metadata for tags { #metadata-for-tags }

You can also add additional metadata for the different tags used to group your path operations with the parameter `openapi_tags`.

It takes a list containing one dictionary for each tag.

Each dictionary can contain:

* `name` (**required**): a `str` with the same tag name you use in the `tags` parameter in your *path operations* and `APIRouter`s.

				var and And
				if err = d.DecodeElement(&and, &se); err != nil {
					return err
				}
				f.And = and
				f.andSet = true
			case "Tag":
				var tag Tag
				if err = d.DecodeElement(&tag, &se); err != nil {
					return err
				}
				f.Tag = tag
				f.tagSet = true
			case "ObjectSizeLessThan":
				var sz int64
				if err = d.DecodeElement(&sz, &se); err != nil {
					return err
				}

  /**
   * Returns the tag attached with [type] as a key, or null if no tag is attached with that key.
   *
   * The tags on a call are seeded from the [request tags][Request.tag]. This set will grow if new
   * tags are computed.
   */
  fun <T : Any> tag(type: KClass<T>): T?

  /**
   * Returns the tag attached with [type] as a key, or null if no tag is attached with that key.
   *

			return err
		}
	}
	return nil
}

// TestTags tests if the object tags satisfy the Filter tags requirement,
// it returns true if there is no tags in the underlying Filter.
func (f *Filter) TestTags(userTags string) bool {
	if f.cachedTags == nil {
		cached := make(map[string]string)
		for _, t := range append(f.And.Tags, f.Tag) {
			if !t.IsEmpty() {
				cached[t.Key] = t.Value
			}
		}
		f.cachedTags = cached
	}

<img src="/img/tutorial/generate-clients/image05.png">

## App de FastAPI con tags { #fastapi-app-with-tags }

En muchos casos tu app de FastAPI será más grande, y probablemente usarás tags para separar diferentes grupos de *path operations*.

Por ejemplo, podrías tener una sección para **items** y otra sección para **users**, y podrían estar separadas por tags:

{* ../../docs_src/generate_clients/tutorial002_py310.py hl[21,26,34] *}

    public DirectoryProperty getDockerContext() {
        return dockerContext;
    }

    @Input
    public String[] getTags() {
        return tags;
    }

    public void setTags(String[] tags) {
        this.tags = tags;
    }

    @Input
    public boolean isPull() {
        return pull;
    }

    public void setPull(boolean pull) {
        this.pull = pull;
    }

    val tag = UUID.randomUUID()
    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag(tag)
        .build()
    assertThat(request.tag()).isSameInstanceAs(tag)
    assertThat(request.tag(Any::class.java)).isSameInstanceAs(tag)
    assertThat(request.tag(UUID::class.java)).isNull()
    assertThat(request.tag(String::class.java)).isNull()

    // Alternate access APIs also work.

     */
    fun <T : Any> tag(
      type: KClass<T>,
      tag: T?,
    ): Builder =
      apply {
        tags = tags.plus(type, tag)
      }

    /** Attaches [tag] to the request using `Object.class` as a key. */
    open fun tag(tag: Any?): Builder = tag(Any::class, tag)

    /**
     * Attaches [tag] to the request using [type] as a key. Tags can be read from a