/* Unless key returned is null or invalid Transport.loop() always
         * calls doRecv() after and no one else but the transport thread
         * should call doRecv(). Therefore it is ok to expect that the data
         * in sbuf will be preserved for copying into BUF in doRecv().
         */

        return key;
    }

    @Override

    /**
     * Receives a response from the remote endpoint.
     *
     * @param response the response object to populate
     * @throws IOException if an I/O error occurs
     */
    protected abstract void doRecv(Response response) throws IOException;

    /**
     * Skips an unexpected or unrecognized message.
     *
     * @throws IOException if an I/O error occurs
     */

    /**
     * Receive a response from the transport
     *
     * @param response the response object to populate
     * @throws IOException if an I/O error occurs
     */
    protected abstract void doRecv(Response response) throws IOException;

    /**
     * Skip a response with the given key
     *
     * @param key the key of the response to skip
     * @throws IOException if an I/O error occurs
     */

/// tip | Совет

Файл, начинающийся с точки (`.`), является скрытым в системах, подобных Unix, таких как Linux и macOS.

Но файл dotenv не обязательно должен иметь именно такое имя.

///

func (writer *messageWriter) Finish(bytesScanned, bytesProcessed int64) error {
	select {
	case <-writer.doneCh:
		return fmt.Errorf("messageWriter is done")
	default:
		writer.finBytesScanned = bytesScanned
		writer.finBytesProcessed = bytesProcessed
		close(writer.payloadCh)
		// Wait until the `start` go-routine is done.
		<-writer.doneCh
		return nil
	}
}

/// tip | Tipp

Damit das funktioniert, müssen Sie `pip install python-dotenv` ausführen.

///

### Die `.env`-Datei { #the-env-file }

Sie könnten eine `.env`-Datei haben, mit:

```bash
ADMIN_EMAIL="******@****.***"

/// tip | Astuce

Pour que cela fonctionne, vous devez exécuter `pip install python-dotenv`.

///

### Le fichier `.env` { #the-env-file }

Vous pouvez avoir un fichier `.env` avec :

```bash
ADMIN_EMAIL="******@****.***"

				}
				return
			}
		}
	}()
	return func(err error) {
		if doneCh == nil {
			return
		}

		// Indicate we are ready to write.
		doneCh <- err

		// Wait for channel to be closed so we don't race on writes.
		<-doneCh

		// Clear so we can be called multiple times without crashing.
		doneCh = nil
	}, &closeNotifier{rc: r.Body, done: bodyDoneCh}
}

/// tip | İpucu

Nokta (`.`) ile başlayan dosyalar, Linux ve macOS gibi Unix-benzeri sistemlerde gizli dosyadır.

Ancak dotenv dosyasının mutlaka bu dosya adına sahip olması gerekmez.

///

/// tip | Порада

Файл, що починається з крапки (`.`), є прихованим у системах, подібних до Unix, як-от Linux і macOS.

Але файл dotenv не обов'язково має мати саме таку назву.

///