Typically HTTP headers work like a `Map<String, String>`: each field has one value or none. But some headers permit multiple values, like Guava's [Multimap](https://guava.dev/releases/23.0/api/docs/com/google/common/collect/Multimap.html). For example, it's legal and common for an HTTP response to supply multiple `Vary` headers. OkHttp's APIs attempt to make both cases comfortable.

* Funcionalidades ✨
* Mudanças incompatíveis 🚨
* Dicas e truques ✅

## Siga o FastAPI no X (Twitter) { #follow-fastapi-on-x-twitter }

[Siga @fastapi no **X (Twitter)**](https://x.com/fastapi) para receber as últimas notícias sobre o **FastAPI**. 🐦

## Dê uma estrela ao **FastAPI** no GitHub { #star-fastapi-in-github }

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labels.search_result_cache=Cache
labels.search_result_similar=Resultados semelhantes ({0})
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labels.facet_timestamp_1week=Última semana
labels.facet_timestamp_1month=Último mês
labels.facet_timestamp_1year=Último ano
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* Funcionalidades ✨
* Cambios importantes 🚨
* Consejos y trucos ✅

## Sigue a FastAPI en X (Twitter) { #follow-fastapi-on-x-twitter }

[Sigue a @fastapi en **X (Twitter)**](https://x.com/fastapi) para obtener las últimas noticias sobre **FastAPI**. 🐦

## Dale una estrella a **FastAPI** en GitHub { #star-fastapi-in-github }

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    val names: Set<String> = headers.names()
    val values: List<String> = headers.values("")
    val byteCount: Long = headers.byteCount()
    val builder: Headers.Builder = headers.newBuilder()
    val multimap: Map<String, List<String>> = headers.toMultimap()
  }

  @Test
  fun headersBuilder() {
    var builder: Headers.Builder = Headers.Builder()
    builder = builder.add("")
    builder = builder.add("", "")

  // cached so that this.multimapView().inverse() only computes inverse once
  @LazyInit private transient @Nullable ImmutableSetMultimap<K, V> multimapView;

  /**
   * Returns a multimap view of the map.
   *
   * @since 14.0
   */
  public ImmutableSetMultimap<K, V> asMultimap() {
    if (isEmpty()) {
      return ImmutableSetMultimap.of();
    }

				"application/x-tika-iworks-protected",
				"application/vnd.arastra.swi",
				"application/vnd.audiograph",
				"application/vnd.autopackage",
				"application/vnd.avistar+xml",
				"application/vnd.blueice.multipass",
				"application/vnd.bluetooth.ep.oob",
				"application/vnd.bmi",
				"application/vnd.businessobjects",
				"application/vnd.cab-jscript",
				"application/vnd.canon-cpdl",
				"application/vnd.canon-lips",

  // cached so that this.multimapView().inverse() only computes inverse once
  @LazyInit private transient @Nullable ImmutableSetMultimap<K, V> multimapView;

  /**
   * Returns a multimap view of the map.
   *
   * @since 14.0
   */
  public ImmutableSetMultimap<K, V> asMultimap() {
    if (isEmpty()) {
      return ImmutableSetMultimap.of();
    }

on-S3-Sealed-Key":"IAAfANwBqlslXkn9TXOV/b/2SGWAz5sSIGb7JxdYZRv==","X-Minio-Internal-Server-Side-Encryption-Seal-Algorithm":"DAREv2-HMAC-SHA256","content-type":"application/octet-stream"}},{"Bucket":"buck1","Name":"go_113/src/cmd/go/testdata/src/multimain/multimain_test.go","UserDef":{"X-Minio-Internal-Server-Side-Encryption-Iv":"5FguKSbSrWPJAcYVeC8g=","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id":"my-minio-key","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key":"IAAfAO5oY9a8PJ...