*/
    int recv(byte[] buf, int off, int length) throws IOException;

    /**
     * Send data to the pipe
     *
     * @param buf buffer containing data to send
     * @param off offset in the buffer
     * @param length length of data to send
     * @throws IOException if an I/O error occurs
     */
    void send(byte[] buf, int off, int length) throws IOException;

    /**

    And this path operation will:

    * Send the invoice to the client.
    * Collect the money from the client.
    * Send a notification back to the API user (the external developer), as a callback.
        * At this point is that the API will somehow send a POST request to the
            external API with the notification of the invoice event
            (e.g. "payment successful").
    """

///

## Await for messages and send messages { #await-for-messages-and-send-messages }

In your WebSocket route you can `await` for messages and send messages.

{* ../../docs_src/websockets_/tutorial001_py310.py hl[48:52] *}

You can receive and send binary, text, and JSON data.

## Try it { #try-it }

            when(mockFile.getType()).thenReturn(SmbConstants.TYPE_NAMED_PIPE);

            // th.send(request, response, ...) throws SmbException with NT_STATUS_PIPE_BROKEN
            doThrow(new SmbException(NtStatus.NT_STATUS_PIPE_BROKEN, false)).when(mockTree)
                    .send(any(jcifs.internal.CommonServerMessageBlockRequest.class),

La manière de décrire cela dans OpenAPI est de marquer ce champ comme **requis**, car il sera toujours présent.

Pour cette raison, le schéma JSON d'un modèle peut être différent selon qu'il est utilisé pour **l'entrée ou la sortie** :

- pour **l'entrée**, `description` ne sera **pas requis**

                log.warn("Failed to pre-allocate receive buffer", e);
            }
        }

        log.info("Initialized RDMA buffer pool with {} send and {} receive buffers", availableSendRegions.size(),
                availableReceiveRegions.size());
    }

    /**
     * Get a send region from the pool or allocate a new one
     *
     * @param minSize minimum required size
     * @return memory region for sending

        async with AsyncExitStack() as stack:
            scope[self.context_name] = stack

/// info | Informação

Um token "bearer" não é a única opção.

Mas é a melhor para o nosso caso de uso.

E pode ser a melhor para a maioria dos casos de uso, a menos que você seja um especialista em OAuth2 e saiba exatamente por que existe outra opção que se adapta melhor às suas necessidades.

Nesse caso, o **FastAPI** também fornece as ferramentas para construí-la.

///

errors.blank_password = A senha é obrigatória.
errors.password_length = A senha deve ter pelo menos {0} caracteres.
errors.password_no_uppercase = A senha deve conter pelo menos uma letra maiúscula.
errors.password_no_lowercase = A senha deve conter pelo menos uma letra minúscula.
errors.password_no_digit = A senha deve conter pelo menos um dígito.
errors.password_no_special_char = A senha deve conter pelo menos um caractere especial.

     */
    int NTLMSSP_NEGOTIATE_ALWAYS_SIGN = 0x00008000;

    /**
     * Sent by the server in the Type 2 message to indicate that the
     * target authentication realm is a domain.
     */
    int NTLMSSP_TARGET_TYPE_DOMAIN = 0x00010000;

    /**
     * Sent by the server in the Type 2 message to indicate that the
     * target authentication realm is a server.
     */