*/
  @AndroidIncompatible
  public void testTaskThrowsError() throws Exception {
    class MyError extends Error {}
    CyclicBarrier barrier = new CyclicBarrier(2);
    // we need to make sure the error gets thrown on a different thread.
    ExecutorService service = newSingleThreadExecutor();
    try {
      SequentialExecutor executor = new SequentialExecutor(service);
      Runnable errorTask =
          new Runnable() {

- `outputToken` – A token added to the response headers when the Lambda function returns the transformed object. This is used by MinIO to verify the incoming response validity.

Lets start the lambda handler.

```
python lambda_handler.py
 * Serving Flask app 'webhook'
 * Debug mode: off

}

// Wrapper to restClient.CallWithMethod to handle network errors, in case of network error the connection is disconnected
// and a healthcheck routine gets invoked that would reconnect.
func (client *storageRESTClient) callGet(ctx context.Context, rpcMethod string, values url.Values, body io.Reader, length int64) (io.ReadCloser, error) {
	if values == nil {
		values = make(url.Values)

    // This is trickier than expected. We plan to put 15 values in each of these (WARMUP_MIN to
    // WARMUP_MAX), but the tests assume no values get evicted. Even with a maximumSize of 100, one
    // of the values gets evicted. With weak keys, we use identity equality, which means using
    // System.identityHashCode, which means the assignment of keys to segments is nondeterministic,

    return value;
  }

  // Serialization helpers

  /** The size of byte array representation in bytes. */
  private static final int BYTES = Stats.BYTES * 2 + Double.SIZE / Byte.SIZE;

  /**
   * Gets a byte array representation of this instance.
   *
   * <p><b>Note:</b> No guarantees are made regarding stability of the representation between
   * versions.
   */
  public byte[] toByteArray() {

**FastAPI** is helemaal gebaseerd op deze type hints, ze geven veel voordelen.

Maar zelfs als je **FastAPI** nooit gebruikt, heb je er baat bij om er iets over te leren.

/// note

Als je een Python expert bent en alles al weet over type hints, sla dan dit hoofdstuk over.

///

## Motivatie

Laten we beginnen met een eenvoudig voorbeeld:

[tools](https://www.tensorflow.org/resources/tools),
[libraries](https://www.tensorflow.org/resources/libraries-extensions), and
[community](https://www.tensorflow.org/community) resources that lets
researchers push the state-of-the-art in ML and developers easily build and
deploy ML-powered applications.

TensorFlow was originally developed by researchers and engineers working within

                .filter(StringUtil::isNotBlank)
                .distinct()
                .collect(Collectors.joining("\n")));
        return body;
    }

    /**
     * Gets the CSV file encoding from configuration.
     *
     * @return the CSV file encoding string
     */
    private String getCsvEncoding() {
        return fessConfig.getCsvFileEncoding();
    }

                    }
                });
            } catch (final Exception e) {
                logger.warn("Failed to access log files.", e);
            }
        }
    }

    /**
     * Gets host information including hostname and IP address.
     *
     * @return formatted string containing hostname and IP address
     */
    protected String getHostInfo() {

    public <T> T unwrap(final Class<T> t) {
        if (t.isAssignableFrom(this.getClass())) {
            return (T) this;
        }
        throw new ClassCastException();
    }

    /**
     * Gets the byte array representation of this SID.
     *
     * @return encoded SID
     */
    public byte[] toByteArray() {
        return toByteArray(this);
    }

    /**