this.generator = generator;
    this.collectionSize = collectionSize;
  }

  @Override
  public TestContainerGenerator<T, E> getInnerGenerator() {
    return generator;
  }

  @Override
  public SampleElements<E> samples() {
    return generator.samples();
  }

  @Override
  public T create(Object... elements) {
    return generator.create(elements);

     * @param outputFile the file where the generated thumbnail will be saved
     * @return true if the thumbnail was successfully generated, false otherwise
     */
    @Override
    public boolean generate(final String thumbnailId, final File outputFile) {
        if (logger.isDebugEnabled()) {
            logger.debug("Generate Thumbnail: {}", thumbnailId);
        }

        if (outputFile.exists()) {

        TermQueryBuilder builder = regTermQ("generator", generator);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void setGenerator_NotEqual(String generator) {
        setGenerator_NotTerm(generator, null);
    }

    public void setGenerator_NotTerm(String generator) {
        setGenerator_NotTerm(generator, null);

  public static <K, V> ConcurrentNavigableMapTestSuiteBuilder<K, V> using(
      TestSortedMapGenerator<K, V> generator) {
    ConcurrentNavigableMapTestSuiteBuilder<K, V> result =
        new ConcurrentNavigableMapTestSuiteBuilder<>();
    result.usingGenerator(generator);
    return result;
  }

  @SuppressWarnings("rawtypes") // class literals
  @Override

/**
 * A generator that relies on a preexisting generator for most of its work. For example, a derived
 * iterator generator may delegate the work of creating the underlying collection to an inner
 * collection generator.
 *
 * <p>{@code GwtTestSuiteGenerator} expects every {@code DerivedIterator} implementation to provide
 * a one-arg constructor accepting its inner generator as an argument. This requirement enables it

/**
 * A generator that relies on a preexisting generator for most of its work. For example, a derived
 * iterator generator may delegate the work of creating the underlying collection to an inner
 * collection generator.
 *
 * <p>{@code GwtTestSuiteGenerator} expects every {@code DerivedIterator} implementation to provide
 * a one-arg constructor accepting its inner generator as an argument. This requirement enables it

        return null;
    }

    /**
     * Adds a thumbnail generator to the manager.
     *
     * @param generator the thumbnail generator to add
     */
    public void add(final ThumbnailGenerator generator) {
        if (generator.isAvailable()) {
            if (logger.isDebugEnabled()) {
                logger.debug("{} is available.", generator.getName());
            }
            generatorList.add(generator);

                generator.saveImage(input, outputFile);
            }
            assertImageSize(outputFile, 100, 66);

            imagePath = "thumbnail/600x400.gif";
            try (ImageInputStream input = ImageIO.createImageInputStream(classLoader.getResourceAsStream(imagePath))) {
                generator.saveImage(input, outputFile);
            }
            assertImageSize(outputFile, 100, 66);

        this.createdTime = value;
    }

    public String getGenerator() {
        checkSpecifiedProperty("generator");
        return convertEmptyToNull(generator);
    }

    public void setGenerator(String value) {
        registerModifiedProperty("generator");
        this.generator = value;
    }

    public String getPath() {
        checkSpecifiedProperty("path");

Takes an async generator or a normal generator/iterator and streams the response body.

{* ../../docs_src/custom_response/tutorial007.py hl[2,14] *}

#### Using `StreamingResponse` with file-like objects { #using-streamingresponse-with-file-like-objects }

If you have a file-like object (e.g. the object returned by `open()`), you can create a generator function to iterate over that file-like object.