HashBiMap<K, V> bimap = create(map.size());
    bimap.putAll(map);
    return bimap;
  }

  /**
   * An immutable key-value pair with mutable links to other pairs in its hash buckets and in
   * iteration order.
   */
  static final class Node<K extends @Nullable Object, V extends @Nullable Object> {
    @ParametricNullness final K key;
    @ParametricNullness final V value;

		return false
	}

	xhttp.Flush(writer.writer)
	return true
}

func (writer *messageWriter) start() {
	keepAliveTicker := time.NewTicker(1 * time.Second)
	var progressTicker *time.Ticker
	var progressTickerC <-chan time.Time
	if writer.getProgressFunc != nil {
		progressTicker = time.NewTicker(1 * time.Minute)
		progressTickerC = progressTicker.C
	}

		0, nil, s.accessKey, s.secretKey, s.signer)
	c.Assert(err, nil)
	// execute the HTTP request to list buckets.
	response, err := s.client.Do(request)
	c.Assert(err, nil)
	c.Assert(response.StatusCode, http.StatusOK)

	// create HTTP request for listing buckets.
	request, err = newTestSignedRequest(http.MethodGet, getListBucketURL(s.endPoint),
		0, nil, s.accessKey, s.secretKey, s.signer)

	}
	return fi
}

// ReadMultipleReq contains information of multiple files to read from disk.
type ReadMultipleReq struct {
	Bucket       string   `msg:"bk"`           // Bucket. Can be empty if multiple buckets.
	Prefix       string   `msg:"pr,omitempty"` // Shared prefix of all files. Can be empty. Will be joined to filename without modification.
	Files        []string `msg:"fl"`           // Individual files to read.

2018/12/26 17:49:36 listening on http://localhost:8080/
```

> NOTE: for a reasonable test outcome, make sure the assumed user has at least permission/policy to list all buckets. That policy would look like below:

```
{
  "version": "2012-10-17",
  "statement": [
    {
      "effect": "Allow",
      "action": [
        "s3:ListAllMyBuckets"
      ],

			writeErrorResponse(r.Context(), w, invalidReq, r.URL)
			atomic.AddUint64(&globalHTTPStats.rejectedRequestsInvalid, 1)
			return
		}
		// For all other requests reject access to reserved buckets
		bucketName, _ := request2BucketObjectName(r)
		if isMinioReservedBucket(bucketName) || isMinioMetaBucket(bucketName) {

  private var minimumDeflateSize: Long,
  private val webSocketCloseTimeout: Long,
) : WebSocket,
  WebSocketReader.FrameCallback,
  Lockable {
  private val key: String

  /** Non-null for client web sockets. These can be canceled. */
  internal var call: Call? = null

  /** This task processes the outgoing queues. Call [runWriter] to after enqueueing. */
  private var writerTask: Task? = null

				// by the bucketDNS style to ensure that path style
				// is available and honored at this domain.
				//
				// All other `<bucket>.<namespace>.svc.<cluster_domain>`
				// makes sure that buckets are routed through this matcher
				// to match for `<bucket>`
				return host != minioReservedBucket+"."+domainName
			}).Host("{bucket:.+}."+domainName).Subrouter())
		} else {

- Enables Prometheus native histogram support in kube-proxy when feature gate is enabled.

            this.thread.start();
        }
    }

    void tryClose() {
        synchronized (this.LOCK) {

            /*
             * Yes, there is the potential to drop packets
             * because we might close the socket during a
             * request. However the chances are slim and the
             * retry code should ensure the overall request