So, even with the code above that doesn't use Pydantic explicitly, FastAPI is using Pydantic to convert those standard dataclasses to Pydantic's own flavor of dataclasses.

And of course, it supports the same:

* data validation
* data serialization
* data documentation, etc.

For example, Google login uses OpenID Connect (which underneath uses OAuth2).

But Facebook login doesn't support OpenID Connect. It has its own flavor of OAuth2.

### OpenID (not "OpenID Connect") { #openid-not-openid-connect }

There was also an "OpenID" specification. That tried to solve the same thing as **OpenID Connect**, but was not based on OAuth2.

#     nonccl:       Disable nccl support.
#
#
# Remote build execution options (only configured to work with TF team projects for now.)
#     rbe_base:                       General RBE options shared by all flavors.
#     rbe_linux:                      General RBE options used on all linux builds.
#     rbe_win_base:                   General RBE options used on all Windows builds. Not to be used standalone.

   *     BloomFilter}; must be positive
   * @return a {@code Collector} generating a {@code BloomFilter} of the received elements
   * @since 33.4.0 (but since 23.0 in the JRE flavor)
   */
  @IgnoreJRERequirement // Users will use this only if they're already using streams.
  public static <T extends @Nullable Object> Collector<T, ?, BloomFilter<T>> toBloomFilter(

* **Velocità**: Prestazioni molto elevate, alla pari di **NodeJS** e **Go** (grazie a Starlette e Pydantic). [Uno dei framework Python più veloci in circolazione](#performance).
* **Veloce da programmare**: Velocizza il lavoro consentendo il rilascio di nuove funzionalità tra il 200% e il 300% più rapidamente. *
* **Meno bug**: Riduce di circa il 40% gli errori che commettono gli sviluppatori durante la scrittura del codice. *

- Dynamic Resource Allocation: Graduated core functionality to general availability (GA). This newly stable feature uses the _structured parameters_ flavor of DRA. ([#132706](https://github.com/kubernetes/kubernetes/pull/132706), [@pohly](https://github.com/pohly)) [SIG API Machinery, Apps, Auth, Autoscaling, Etcd, Node, Scheduling and Testing]

### Fixes

* ⬆ Upgrade Swagger UI copy of `oauth2-redirect.html` to include fixes for flavors of authorization code flows in Swagger UI. PR [#3439](https://github.com/tiangolo/fastapi/pull/3439) initial PR by [@koonpeng](https://github.com/koonpeng).