some_file_path = "large-video-file.mp4"
app = FastAPI()


@app.get("/")
def main():
    def iterfile():  # (1)
        with open(some_file_path, mode="rb") as file_like:  # (2)
            yield from file_like  # (3)

3. Este `yield from` le dice a la función que itere sobre esa cosa llamada `file_like`. Y luego, para cada parte iterada, yield esa parte como proveniente de esta función generadora (`iterfile`).

    Entonces, es una función generadora que transfiere el trabajo de "generar" a algo más internamente.

3. This `yield from` tells the function to iterate over that thing named `file_like`. And then, for each part iterated, yield that part as coming from this generator function (`iterfile`).

    So, it is a generator function that transfers the "generating" work to something else internally.

3. Dieses `yield from` weist die Funktion an, über das Ding namens `file_like` zu iterieren. Und dann für jeden iterierten Teil, diesen Teil so zurückzugeben, als wenn er aus dieser Generatorfunktion (`iterfile`) stammen würde.

    Es handelt sich also hier um eine Generatorfunktion, die die „generierende“ Arbeit intern auf etwas anderes überträgt.

3. Этот `yield from` говорит функции итерироваться по объекту с именем `file_like`. И затем, для каждой итерации, отдавать эту часть как исходящую из этой функции-генератора (`iterfile`).

   Таким образом, это функция-генератор, которая внутренне передаёт работу по «генерации» чему-то другому.

3. Essa declaração `yield from` informa a função para iterar sobre essa coisa nomeada de `file_like`. E então, para cada parte iterada, fornece essa parte como se viesse dessa função geradora (`iterfile`).

    Então, é uma função geradora que transfere o trabalho de "geração" para alguma outra coisa interna.

    Iterable<Long> iterable = iterable(Collections.<Long>emptySet());
    assertThat(ImmutableLongArray.copyOf(iterable)).isSameInstanceAs(ImmutableLongArray.of());
  }

  public void testCopyOf_iterable_notCollection_nonempty() {
    List<Long> list = Arrays.asList(0L, 1L, 3L);
    ImmutableLongArray iia = ImmutableLongArray.copyOf(iterable(list));
    list.set(2, 2L);

     */
    @Nonnull
    @Override
    public String[] option(Iterable<? extends Path> paths) {
        return format(null, paths);
    }

    /**
     * Implementation shared with {@link Modular}.
     */
    final String[] format(String moduleName, Iterable<? extends Path> paths) {
        if (option == null) {

     * values} if it is a Set and therefore probably already deduplicated.
     */
    int expectedValueCollectionSize(int defaultExpectedValues, Iterable<?> values) {
      if (values instanceof Collection<?>) {
        Collection<?> collection = (Collection<?>) values;
        return max(defaultExpectedValues, collection.size());
      } else {

   * values} is a {@link Collection}. Otherwise it creates a {@link #builder} and uses {@link
   * Builder#addAll(Iterable)}, with all the performance implications associated with that.
   */
  public static ImmutableLongArray copyOf(Iterable<Long> values) {
    if (values instanceof Collection) {
      return copyOf((Collection<Long>) values);
    }
    return builder().addAll(values).build();