z, ok := objAPI.(*erasureServerPools)
	if !ok {
		// Prefix usage is empty
		return map[string]uint64{}, nil
	}

	cache := dataUsageCache{}

	prefixUsageCache.InitOnce(30*time.Second,
		// No need to fail upon Update() error, fallback to old value.
		cachevalue.Opts{ReturnLastGood: true, NoWait: true},
		func(ctx context.Context) (map[string]uint64, error) {
			m := make(map[string]uint64)
			for _, pool := range z.serverPools {

        impl.releaseBuffer(toRelease);

        byte[] fromCache = impl.getBuffer();
        assertSame(toRelease, fromCache, "Released buffer should be returned from cache regardless of cache size");
        // Zeroed upon release
        for (byte value : fromCache) {
            assertEquals(0, value);
        }
    }

    // Invalid inputs: negative sizes for constructor arguments
    @Nested

				case watchResp, ok := <-watchCh:
					if !ok {
						time.Sleep(1 * time.Second)
						// Upon an error on watch channel
						// re-init the watch channel.
						goto outerLoop
					}
					if err := watchResp.Err(); err != nil {
						iamLogIf(ctx, err)
						// log and retry.
						time.Sleep(1 * time.Second)
						// Upon an error on watch channel
						// re-init the watch channel.
						goto outerLoop
					}

    }

    /**
     * An inner class for updating the stopwords file.
     * This class handles the process of writing changes to a temporary file
     * and then replacing the original file upon successful commit.
     */
    protected class StopwordsUpdater implements Closeable {

        /** A flag indicating whether the changes have been committed. */
        protected boolean isCommit = false;

import okio.ByteString

/**
 * A non-blocking interface to a web socket. Use the [factory][WebSocket.Factory] to create
 * instances; usually this is [OkHttpClient].
 *
 * ## Web Socket Lifecycle
 *
 * Upon normal operation each web socket progresses through a sequence of states:
 *
 *  * **Connecting:** the initial state of each web socket. Messages may be enqueued but they won't
 *    be transmitted until the web socket is open.
 *

    }

    /**
     * An inner class for updating the stemmer override file.
     * This class handles the process of writing changes to a temporary file
     * and then replacing the original file upon successful commit.
     */
    protected class StemmerOverrideUpdater implements Closeable {

        /** A flag indicating whether the changes have been committed. */
        protected boolean isCommit = false;

  internal val listener: WebSocketListener,
  private val random: Random,
  private val pingIntervalMillis: Long,
  /**
   * For clients this is initially null, and will be assigned to the agreed-upon extensions. For
   * servers, it should be the agreed-upon extensions immediately.
   */
  private var extensions: WebSocketExtensions?,
  /** If compression is negotiated, outbound messages of this size and larger will be compressed. */

// completion.
TF_CAPI_EXPORT extern void TF_SetAttr(TF_Graph* graph, TF_Operation* op,
                                      const char* attr_name,
                                      TF_Buffer* attr_value_proto,
                                      TF_Status* status);

// Clears the attr in the node_def Protocol Buffer and sets a status upon
// completion.

				}
				mu.Unlock()
			}(clnt)
		}
		wg.Wait()

		select {
		case <-ctx.Done():
			return ctx.Err()
		default:
			// Sleep and stagger to avoid blocked CPU and thundering
			// herd upon start up sequence.
			time.Sleep(25*time.Millisecond + time.Duration(rand.Int63n(int64(100*time.Millisecond))))
			retries++
			// after 20 retries start logging that servers are not reachable yet
			if retries >= 20 {

	if strings.TrimSpace(right) == "*" {
		return true
	}
	return canonicalizeETag(left) == canonicalizeETag(right)
}

// setPutObjHeaders sets all the necessary headers returned back
// upon a success Put/Copy/CompleteMultipart/Delete requests
// to activate delete only headers set delete as true
func setPutObjHeaders(w http.ResponseWriter, objInfo ObjectInfo, del bool, h http.Header) {