Nesse caso, você pode desativar esse recurso no **FastAPI**, com o parâmetro `separate_input_output_schemas=False`.

/// info | Informação

O suporte para `separate_input_output_schemas` foi adicionado no FastAPI `0.102.0`. 🤓

///

//// tab | Python 3.10+

    * **Fácil**: Projetado para ser fácil de usar e aprender. Menos tempo lendo documentações.
    * **Curto**: Minimize duplicação de código. Múltiplos recursos para cada declaração de parâmetro.
    * **Robusto**: Tenha código pronto para produção. Com documentação interativa automática.

                target == null && type1.getFlag(NTLMSSP_REQUEST_TARGET)) ?
                        getDefaultDomain() : target);
    }

    /**
     * Creates a Type-2 message with the specified parameters.
     *
     * @param flags The flags to apply to this message.
     * @param challenge The challenge from the domain controller/server.
     * @param target The authentication target.
     */

`OAuth2PasswordBearer` makes **FastAPI** know that it is a security scheme. So it is added that way to OpenAPI.

But `OAuth2PasswordRequestForm` is just a class dependency that you could have written yourself, or you could have declared `Form` parameters directly.

But as it's a common use case, it is provided by **FastAPI** directly, just to make it easier.

///

### Use the form data

/// tip

                                  type: string
                              type: object
                            description: Query parameters for matching.
                            type: object
                          scheme:
                            description: 'URI Scheme values are case-sensitive and

 * @param <V> the type of mapped values used the maps under test
 * @author George van den Driessche
 */
// TODO: Descriptive assertion messages, with hints as to probable fixes.
// TODO: Add another constructor parameter indicating whether the class under test is ordered, and
// check the order if so.
// TODO: Refactor to share code with SetTestBuilder etc.
@GwtCompatible
@ElementTypesAreNonnullByDefault

      return policy == Policies.DISABLED
          ? new ReentrantLock(fair)
          // requireNonNull is safe because createNodes inserts an entry for every E.
          // (If the caller passes `null` for the `rank` parameter, this will throw, but that's OK.)
          : new CycleDetectingReentrantLock(requireNonNull(lockGraphNodes.get(rank)), fair);
    }

    /** Equivalent to {@code newReentrantReadWriteLock(rank, false)}. */

        return false;
    }

    // ===================================================================================
    //                                                                   Request Parameter
    //                                                                   =================
    public SearchRequestParams request() {
        return _searchRequestParams;
    }

Aber `OAuth2PasswordRequestForm` ist nur eine Klassenabhängigkeit, die Sie selbst hätten schreiben können, oder Sie hätten `Form`ular-Parameter direkt deklarieren können.

Da es sich jedoch um einen häufigen Anwendungsfall handelt, wird er zur Vereinfachung direkt von **FastAPI** bereitgestellt.

///

### Die Formulardaten verwenden

            ( type1 != null && target == null && type1.getFlag(NTLMSSP_REQUEST_TARGET) ) ? tc.getConfig().getDefaultDomain() : target);
    }


    /**
     * Creates a Type-2 message with the specified parameters.
     * 
     * @param tc
     *            context to use
     * @param flags
     *            The flags to apply to this message.
     * @param challenge