workloads rely on HDFS atomic rename functionality to complete writing data to the datastore. Object storage operations are atomic by nature and they do not require/implement rename API. The default S3A committer emulates renames through copy and delete APIs. This interaction pattern causes significant loss of performance because of the write amplification. _Netflix_, for example, developed two new staging committers - the Directory staging committer and the Partitioned staging committer - to take full...

Download a file on a worker thread, and get called back when the response is readable. The callback is made after the response headers are ready. Reading the response body may still block. OkHttp doesn't currently offer asynchronous APIs to receive a response body in parts.

=== ":material-language-kotlin: Kotlin"
    ```kotlin
      private val client = OkHttpClient()

      fun run() {
        val request = Request.Builder()

That would refer to some package above `app/`, with its own file `__init__.py`, etc. But we don't have that. So, that would throw an error in our example. 🚨

But now you know how it works, so you can use relative imports in your own apps no matter how complex they are. 🤓

### Add some custom `tags`, `responses`, and `dependencies` { #add-some-custom-tags-responses-and-dependencies }

            entity.setNewToken(form.token);
            entity.setNewSegmentation(form.segmentation);
            entity.setNewReading(form.reading);
            entity.setNewPos(form.pos);
            return entity;
        });
    }

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

  /** Returns an unmodifiable iterator across the elements in this collection. */
  @Override
  public abstract UnmodifiableIterator<E> iterator();

  @Override
  @IgnoreJRERequirement // used only from APIs with Java 8 types in them
  // (not used within guava-android as of this writing, but we include it in the jar as a test)
  public Spliterator<E> spliterator() {

This helps to make sure that:

* The documentation is up-to-date.
* The documentation examples can be run as is.
* Most of the features are covered by the documentation, ensured by test coverage.

#### Apps and docs at the same time

If you run the examples with, e.g.:

<div class="termy">

```console
$ fastapi dev tutorial001.py

pkg expvar, method (*Map) Delete(string)
pkg go/doc, const PreserveAST = 4
pkg go/doc, const PreserveAST Mode
pkg go/importer, func ForCompiler(*token.FileSet, string, Lookup) types.Importer
pkg go/token, method (*File) LineStart(int) Pos
pkg io, type StringWriter interface { WriteString }
pkg io, type StringWriter interface, WriteString(string) (int, error)
pkg log, method (*Logger) Writer() io.Writer
pkg math/bits, func Add(uint, uint, uint) (uint, uint)

   * that {@link NullPointerTester} may misbehave under Android when used on classes that rely on
   * type-use annotations.
   *
   * <p>Under j2objc, the necessary APIs exist, but some (perhaps all) return stub values, like
   * empty arrays. Presumably {@link NullPointerTester} could likewise misbehave under j2objc, but I
   * don't know that anyone uses it there, anyway.
   */

---

"আপনি যদি REST API তৈরির জন্য একটি **আধুনিক ফ্রেমওয়ার্ক** শিখতে চান, তাহলে **FastAPI** দেখুন [...] এটি দ্রুত, ব্যবহার করা সহজ এবং শিখতেও সহজ [...]\_"

"_আমরা আমাদের **APIs** [...] এর জন্য **FastAPI**- তে এসেছি [...] আমি মনে করি আপনিও এটি পছন্দ করবেন [...]_"

        } catch (Exception // sneaky checked exception
            | Error atomicReferenceFieldUpdaterFailure) {
          // Some Android 5.0.x Samsung devices have bugs in JDK reflection APIs that cause
          // getDeclaredField to throw a NoSuchFieldException when the field is definitely there.
          // For these users fallback to a suboptimal implementation, based on synchronized. This