.put(ImmutableClassToInstanceMap.class, ImmutableClassToInstanceMap.builder().build())
          .put(Comparable.class, ByToString.INSTANCE)
          .put(Comparator.class, AlwaysEqual.INSTANCE)
          .put(Ordering.class, AlwaysEqual.INSTANCE)
          .put(Range.class, Range.all())
          .put(MapDifference.class, Maps.difference(ImmutableMap.of(), ImmutableMap.of()))
          .put(

    void testRapidCalls() {
        Instant[] instants = new Instant[1000];
        for (int i = 0; i < instants.length; i++) {
            instants[i] = MonotonicClock.now();
        }

        // Verify monotonic behavior across all measurements
        for (int i = 1; i < instants.length; i++) {
            assertTrue(
                    instants[i].compareTo(instants[i - 1]) >= 0,

# https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html
exit_if_not_on_ec2_instance() {
  curl -m 1 -s "http://169.254.169.254/latest/meta-data/instance-id"
  IS_EC2_INSTANCE=$?
  if [ $IS_EC2_INSTANCE -ne 0 ]; then
    echo "Not running on an EC2 instance, skipping the configuration"
    exit 0
  fi
}

But we want to be able to parameterize that fixed content.

## A "callable" instance { #a-callable-instance }

In Python there's a way to make an instance of a class a "callable".

Not the class itself (which is already a callable), but an instance of that class.

To do that, we declare a method `__call__`:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[12] *}

    instance := grid.NewStream[*Payload, *Req, *Resp](h, newPayload, newReq, newResp)

    // Tweakable options
    instance.WithPayload = true // default true when newPayload != nil
    instance.OutCapacity = 1    // default
    instance.InCapacity = 1     // default true when newReq != nil

    // Register the handler on the manager
    instance.Register(manager, handler, "asubroute")

## Crear una instance { #create-an-instance }

Podríamos crear una instance de esta clase con:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[18] *}

Y de esa manera podemos "parametrizar" nuestra dependencia, que ahora tiene `"bar"` dentro de ella, como el atributo `checker.fixed_content`.

## Usar la instance como una dependencia { #use-the-instance-as-a-dependency }

      for (Invokable<?, ?> factory : getFactoriesToTest()) {
        Object instance = instantiate(factory);
        if (instance != null
            && packagesToTest.contains(Reflection.getPackageName(instance.getClass()))) {
          try {
            nullPointerTester.testAllPublicInstanceMethods(instance);
          } catch (AssertionError e) {

                afterExecutionFailure.incrementAndGet();
            }
        };
        assertSame(instance, scope.scope(Key.get(Object.class), () -> instance).get());
        assertSame(
                instance,
                scope.scope(Key.get(WeakMojoExecutionListener.class), () -> instance)
                        .get());

        final MojoExecutionEvent event = new MojoExecutionEvent(null, null, null, null);

   * this parameter is marked nullable, this method does nothing.
   *
   * @param instance the instance to invoke {@code method} on, or null if {@code method} is static
   */
  public void testMethodParameter(@Nullable Object instance, Method method, int paramIndex) {
    method.setAccessible(true);
    testParameter(instance, invokable(instance, method), paramIndex, method.getDeclaringClass());
  }

  /**

    }

    /**
     * Serialize the inbound Model instance to a StringWriter, perform the regex replacement to resolve
     * POM expressions, then re-parse into the resolved Model instance.
     * <p>
     * <b>NOTE:</b> This will result in a different instance of Model being returned!!!
     *
     * @param model The inbound Model instance, to serialize and reference for expression resolution