val request =
      Request.Builder()
        .url("https://square.com")
        .tag(Any::class, tag)
        .build()
    assertThat(request.tag<Any>()).isSameAs(tag)
    assertThat(request.tag(Any::class)).isSameAs(tag)
    assertThat(request.tag(String::class)).isNull()

    // Alternate access APIs also work.
    assertThat(request.tag(Any::class)).isSameAs(tag)
    assertThat(request.tag<Any>()).isSameAs(tag)

fun <T : Any> Request.Builder.commonTag(
  type: KClass<T>,
  tag: T?,
) = apply {
  if (tag == null) {
    if (tags.isNotEmpty()) {
      (tags as MutableMap).remove(type)
    }
  } else {
    val mutableTags: MutableMap<KClass<*>, Any> =
      when {
        tags.isEmpty() -> mutableMapOf<KClass<*>, Any>().also { tags = it }
        else -> tags as MutableMap<KClass<*>, Any>
      }
    mutableTags[type] = tag

    <option name="METHOD_NAME" value="" />
    <option name="TEST_OBJECT" value="tags" />
    <option name="VM_PARAMETERS" value="-ea -Djunit.jupiter.extensions.autodetection.enabled=true" />
    <option name="PARAMETERS" value="" />
    <option name="TEST_SEARCH_SCOPE">
      <value defaultName="wholeProject" />
    </option>
    <tag value="!Slow &amp; !Slowish &amp; !Remote &amp; !Android" />
    <method v="2">

    // 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.

     */
    fun <T : Any> tag(
      type: KClass<T>,
      tag: T?,
    ): Builder = commonTag(type, type.cast(tag))

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

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

   *
   * You may also specify a tag class like [DerHeader.TAG_CLASS_APPLICATION]. The default tag class
   * is [DerHeader.TAG_CLASS_CONTEXT_SPECIFIC].
   *
   * ```
   * Point ::= SEQUENCE {
   *   x [APPLICATION 0] INTEGER OPTIONAL,
   *   y [APPLICATION 1] INTEGER OPTIONAL
   * }
   * ```
   */
  fun withTag(
    tagClass: Int = DerHeader.TAG_CLASS_CONTEXT_SPECIFIC,
    tag: Long,

    }

    val sink = sink()

    // Write the tagClass, tag, and constructed bit. This takes 1 byte if tag is less than 31.
    if (tag < 31) {
      val byte0 = tagClass or constructedBit or tag.toInt()
      sink.writeByte(byte0)
    } else {
      val byte0 = tagClass or constructedBit or 0b0001_1111
      sink.writeByte(byte0)
      writeVariableLengthLong(tag)
    }

      `find . -name "README.md"`
    ```

4. Tag the release and push to GitHub.

    ```
    git commit -am "Prepare for release $RELEASE_VERSION."
    git tag -a parent-$RELEASE_VERSION -m "Version $RELEASE_VERSION"
    git push && git push --tags
    ```

5. Wait for [GitHub Actions][github_actions] to start the publish job.

      name = "test",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 16L,
    ) {
      derWriter.write(
        name = "test",
        tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
        tag = 21L,
      ) {
        derWriter.writeOctetString("Smith".encodeUtf8())
      }

      derWriter.write(
        name = "test",
        tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
        tag = 1L,
      ) {

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

    // Alternate access APIs also work.