private val typeHintStack = mutableListOf<Any?>()

  /**
   * The type hint for the current object. Used to pick adapters based on other fields, such as
   * in extensions which have different types depending on their extension ID.
   */
  var typeHint: Any?
    get() = typeHintStack.lastOrNull()
    set(value) {
      typeHintStack[typeHintStack.size - 1] = value
    }

 * **Security** of the connection. This includes verification of the remote webserver with certificates and the privacy of data exchanged with strong ciphers.

     *
     * @param type1 The Type-1 message which this represents a response to.
     */
    public Type2Message(Type1Message type1) {
        this(type1, null, null);
    }

    /**
     * Creates a Type-2 message in response to the given Type-1 message.
     *
     * @param type1 The Type-1 message which this represents a response to.

Each handler, with optional subroutes can be registered with the manager using 
`Manager.RegisterXHandler(handlerID, handler, subroutes...)`.

A `Handler()` function provides an HTTP handler, which should be hooked up to the appropriate route on the server.

On startup, the manager will start connecting to remotes and also starts listening for incoming connections.

 * that selects a particular version and downloads the artifact in the local repository.
 * There are two sub-interfaces, {@link org.apache.maven.api.DownloadedArtifact} which is used when
 * an artifact has been resolved</p>
 *
 * <p>{@link org.apache.maven.api.DependencyCoordinates} instances are used to express a dependency.

// format between the envoy proxy secrets and node agent output which can be diffed
type SecretItem struct {
	Name        string `json:"resource_name"`
	Data        string `json:"cert"`
	Source      string `json:"source"`
	Destination string `json:"destination"`
	State       string `json:"state"`
	TrustDomain string `json:"trust_domain"`
	SecretMeta
}

// SecretMeta holds selected fields which can be extracted from parsed x509 cert

## Tools {#tools}

### Go command {#go-command}

### Cgo {#cgo}

Cgo currently refuses to compile calls to a C function which has multiple
incompatible declarations. For instance, if `f` is declared as both `void f(int)`
and `void f(double)`, cgo will report an error instead of possibly generating an
incorrect call sequence for `f(0)`. New in this release is a better detector for
this error condition when the incompatible declarations appear in different

   * Returns an immutable list containing the given elements, in order.
   *
   * <p>Despite the method name, this method attempts to avoid actually copying the data when it is
   * safe to do so. The exact circumstances under which a copy will or will not be performed are
   * undocumented and subject to change.
   *
   * <p>Note that if {@code list} is a {@code List<String>}, then {@code ImmutableList.copyOf(list)}

 * amortized since some operations can trigger a hash table resize.
 *
 * <p>Unlike {@code java.util.HashSet}, iteration is only proportional to the actual {@code size()},
 * which is optimal, and <i>not</i> the size of the internal hashtable, which could be much larger
 * than {@code size()}. Furthermore, this structure only depends on a fixed number of arrays; {@code

    RateLimiter limiter = RateLimiter.create(5.0, stopwatch);
    limiter.acquire(); // R0.00
    stopwatch.sleepMillis(200); // U0.20, we are ready for the next request...
    limiter.acquire(); // R0.00, ...which is granted immediately
    limiter.acquire(); // R0.20
    assertEvents("R0.00", "U0.20", "R0.00", "R0.20");
  }

  public void testSimpleAcquireReturnValues() {