## Technical Details { #technical-details }

Modern versions of Python have support for **"asynchronous code"** using something called **"coroutines"**, with **`async` and `await`** syntax.

Let's see that phrase by parts in the sections below:

* **Asynchronous Code**
* **`async` and `await`**
* **Coroutines**

## Asynchronous Code { #asynchronous-code }

to be on the test classpath. Any gradle project that has support for REST
tests will get the primary API on it's class path. However, to better support
Gradle incremental builds, it is recommended to explicitly declare which
parts of the API the tests depend upon.

For example:
---------------------------------------------------------------------------
restResources {
  restApi {

		return MultipartInfo{}, err
	}

	return MultipartInfo{}, InvalidUploadID{
		Bucket:   bucket,
		Object:   object,
		UploadID: uploadID,
	}
}

// ListObjectParts - lists all uploaded parts to an object in hashedSet.
func (z *erasureServerPools) ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker int, maxParts int, opts ObjectOptions) (ListPartsInfo, error) {

			// And should not expect any more results.
			bi, err := getMetacacheBlockInfo(fi, partN)
			internalLogIf(ctx, err)
			if err != nil || bi.EOS {
				// We are done and there are no more parts.
				return entries, io.EOF
			}
			if bi.endedPrefix(o.Prefix) {
				// Nothing more for prefix.
				return entries, io.EOF
			}
			partN++
			retries = 0
		}
	}
}

Contributing as part of a class
-------------------------------
In general Elasticsearch is happy to accept contributions that were created as
part of a class but strongly advise against making the contribution as part of
the class. So if you have code you wrote for a class feel free to submit it.

Please, please, please do not assign contributing to Elasticsearch as part of a

    while (head != null) {
      Listener tmp = head;
      head = head.next;
      tmp.next = reversedList;
      reversedList = tmp;
    }
    return reversedList;
  }

  // TODO(user): move parts into a default method on ListenableFuture?
  @Override
  public String toString() {
    // TODO(cpovirk): Presize to something plausible?
    StringBuilder builder = new StringBuilder();

	}
	volume := p.Volume
	filePath := p.FilePath

	return grid.NewNPErr(s.getStorage().UpdateMetadata(context.Background(), volume, filePath, p.FI, p.UpdateOpts))
}

// CheckPartsHandler - check if a file parts exists.
func (s *storageRESTServer) CheckPartsHandler(ctx context.Context, p *CheckPartsHandlerParams, out chan<- *CheckPartsResp) *grid.RemoteErr {
	if !s.checkID(p.DiskID) {
		return grid.NewRemoteErr(errDiskNotFound)
	}

	// create xlStorage test setup
	xlStorage, _, err := newXLStorageTestSetup(t)
	if err != nil {
		t.Fatalf("Unable to cfgreate xlStorage test setup, %s", err)

	public static final fun createFormData (Ljava/lang/String;Ljava/lang/String;)Lokhttp3/MultipartBody$Part;
	public static final fun createFormData (Ljava/lang/String;Ljava/lang/String;Lokhttp3/RequestBody;)Lokhttp3/MultipartBody$Part;
	public final fun headers ()Lokhttp3/Headers;
}

public final class okhttp3/MultipartBody$Part$Companion {
	public final fun create (Lokhttp3/Headers;Lokhttp3/RequestBody;)Lokhttp3/MultipartBody$Part;

          pertain to any part of the Derivative Works, in at least one
          of the following places: within a NOTICE text file distributed
          as part of the Derivative Works; within the Source form or
          documentation, if provided along with the Derivative Works; or,
          within a display generated by the Derivative Works, if and
          wherever such third-party notices normally appear. The contents