Ahora intenta enviar un ítem inválido como:

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

Recibirás un response que te dirá que los datos son inválidos conteniendo el body recibido:

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],
      "msg": "value is not a valid integer",
      "type": "type_error.integer"
    }

        final List<String> wordList = Analysis.parseWordList(environment, settings, "stopwords", s -> s);
        if (wordList != null) {
            stopwords = wordList.toArray(new String[wordList.size()]);
        } else {
            stopwords = new String[0];
        }

        ignoreCase = settings.getAsBoolean("ignore_case", Boolean.FALSE).booleanValue();
        if (ignoreCase) {

  final transient E element;

  SingletonImmutableSet(E element) {
    this.element = Preconditions.checkNotNull(element);
  }

  @Override
  public int size() {
    return 1;
  }

  @Override
  public boolean contains(@Nullable Object target) {
    return element.equals(target);
  }

  @Override
  public UnmodifiableIterator<E> iterator() {

    public int getPosition() {
        return position;
    }

    @Override
    public boolean setPosition(int position) {
        this.position = position;
        attribute = (position > 0 && position <= attributes.size()) ? attributes.get(position - 1) : null;
        return attribute != null;
    }

ECL0012=argument[{0}] is null or empty collection.
ECL0013=argument[{0}] is null or empty map.
ECL0014=argument[{0}] which is null the index of array is negative integer.
ECL0015=argument[{0}] which is null the index of array exceed the size of array[{1}].
ECL0016=key[{0}] is not included in this BeanMap : {1}.
ECL0017=Exception occurred, because {0}
ECL0041={0}''s creation failure, because {1}
ECL0040=IOException occurred, because {0}

import org.apache.commons.io.output.DeferredFileOutputStream;

/**
 * ContentOutputStream is a custom output stream that extends DeferredFileOutputStream.
 * It writes data to a temporary file once the data size exceeds a specified threshold.
 *
 * <p>This class ensures that the temporary file is deleted if it is not needed.
 * It uses a logger to log warnings if there are issues deleting the temporary file.</p>
 *
 * <p>Fields:</p>

        }

        if (_specification != null) {
            builder.setFetchSource(_specification.columnList.toArray(new String[_specification.columnList.size()]), null);
        }

        return builder;
    }

    // ===================================================================================

    interfaceClasses.add(Serializable.class);
    Object dummy =
        Proxy.newProxyInstance(
            interfaceClasses.iterator().next().getClassLoader(),
            interfaceClasses.toArray(new Class<?>[interfaceClasses.size()]),
            new DummyHandler(interfaceType));
    @SuppressWarnings("unchecked") // interfaceType is T
    T result = (T) dummy;
    return result;
  }

    // FluentIterable.of().append(aIterable).append(bIterable).filter(xPredicate);
  }

  public void testSize0() {
    assertEquals(0, FluentIterable.<String>of().size());
  }

  public void testSize1Collection() {
    assertEquals(1, FluentIterable.from(asList("a")).size());
  }

  public void testSize2NonCollection() {
    Iterable<Integer> iterable =
        new Iterable<Integer>() {
          @Override

    }

    /**
     * Gets the buffer size for data transfers.
     *
     * @return The buffer size
     */
    public int getBufferSize() {
        return bufferSize;
    }

    /**
     * Sets the buffer size for data transfers.
     *
     * @param bufferSize The buffer size
     */
    public void setBufferSize(final int bufferSize) {