## 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
		}
	}
}

ones are:

#### `docs`
Documentation for the project.

#### `distribution`
Builds our tar and zip archives and our rpm and deb packages.

#### `libs`
Libraries used to build other parts of the project. These are meant to be
internal rather than general purpose. We have no plans to
[semver](https://semver.org/) their APIs or accept feature requests for them.

    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 {

	public fun contentLength ()J
	public fun contentType ()Lokhttp3/MediaType;
	public fun isOneShot ()Z
	public final fun part (I)Lokhttp3/MultipartBody$Part;
	public final fun parts ()Ljava/util/List;
	public final fun size ()I
	public final fun type ()Lokhttp3/MediaType;
	public fun writeTo (Lokio/BufferedSink;)V
}

public final class okhttp3/MultipartBody$Builder {
	public fun <init> ()V

linked subprograms that the work is specifically designed to require,
such as by intimate data communication or control flow between those
subprograms and other parts of the work.

  The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
Source.

  The Corresponding Source for a work in source code form is that
same work.

  2. Basic Permissions.