fun invalidatesCache(method: String): Boolean =
    (
      method == "POST" ||
        method == "PATCH" ||
        method == "PUT" ||
        method == "DELETE" ||
        method == "MOVE"
    )

  @JvmStatic // Despite being 'internal', this method is called by popular 3rd party SDKs.
  fun requiresRequestBody(method: String): Boolean =
    (

# Generating SDKs { #generating-sdks }

Because **FastAPI** is based on the **OpenAPI** specification, its APIs can be described in a standard format that many tools understand.

This makes it easy to generate up-to-date **documentation**, client libraries (<abbr title="Software Development Kits">**SDKs**</abbr>) in multiple languages, and **testing** or **automation workflows** that stay in sync with your code.

## Generadores de Clientes y SDKs - Sponsor

También hay algunos generadores de Clientes y SDKs **respaldados por empresas** basados en OpenAPI (FastAPI), en algunos casos pueden ofrecerte **funcionalidades adicionales** además de SDKs/clientes generados de alta calidad.

## No Separar Esquemas

Ahora, hay algunos casos donde podrías querer tener el **mismo esquema para entrada y salida**.

## Do not Separate Schemas { #do-not-separate-schemas }

Now, there are some cases where you might want to have the **same schema for input and output**.

There are multiple tools that you can use to create those dependables, and they get integrated into OpenAPI so they are shown in the automatic docs UI, they can be used by automatically generated clients and SDKs, etc.

You can import them from `fastapi.security`:

```python
from fastapi.security import (
    APIKeyCookie,
    APIKeyHeader,
    APIKeyQuery,
    HTTPAuthorizationCredentials,
    HTTPBasic,

    title: SDKs for your API | Speakeasy
    img: https://fastapi.tiangolo.com/img/sponsors/speakeasy.png
  - url: https://www.svix.com/
    title: Svix - Webhooks as a service
    img: https://fastapi.tiangolo.com/img/sponsors/svix.svg
  - url: https://www.stainlessapi.com/?utm_source=fastapi&utm_medium=referral
    title: Stainless | Generate best-in-class SDKs

import java.security.cert.X509Certificate;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * Simple test adaptable to show a failure in older versions of OkHttp
 * or Android SDKs.
 */
@RunWith(AndroidJUnit4.class)
public class IssueReproductionTest {
  @Test public void getFailsWithoutAdditionalCert() throws IOException {
    OkHttpClient client = new OkHttpClient();

Der Hauptanwendungsfall hierfür besteht wahrscheinlich darin, dass Sie das mal tun möchten, wenn Sie bereits über einige automatisch generierte Client-Codes/SDKs verfügen und im Moment nicht alle automatisch generierten Client-Codes/SDKs aktualisieren möchten, möglicherweise später, aber nicht jetzt.

In diesem Fall können Sie diese Funktion in **FastAPI** mit dem Parameter `separate_input_output_schemas=False` deaktivieren.

/// info

## Geradores de Clientes e SDKs - Patrocinadores

Existem também alguns geradores de clientes e SDKs baseados na OpenAPI (FastAPI) **patrocinados por empresas**, em alguns casos eles podem oferecer **recursos adicionais** além de SDKs/clientes gerados de alta qualidade.