this.closeables = closeables;
  }

  /**
   * Returns a future that finishes when this step does. Calling {@code get()} on the returned
   * future returns {@code null} if the step is successful or throws the same exception that would
   * be thrown by calling {@code finishToFuture().get()} if this were the last step. Calling {@code
   * cancel()} on the returned future has no effect on the {@code ClosingFuture} pipeline.
   *

                        result += "Not listening on called name";
                        break;
                    case NOT_LISTENING_CALLING:
                        result += "Not listening for calling name";
                        break;
                    case CALLED_NOT_PRESENT:
                        result += "Called name not present";
                        break;
                    case NO_RESOURCES:

   * in a {@code RuntimeException}. <b>Note:</b> Be sure to declare all of the checked exception
   * types your try block can throw when calling an overload of this method so as to avoid losing
   * the original exception type.
   *
   * <p>This method always throws, and as such should be called as {@code throw closer.rethrow(e);}
   * to ensure the compiler knows that it will throw.
   *

     * cancelled.
     */
    @CheckForNull Executor delegate;

    /**
     * Set before calling delegate.execute(); set to null once run, so that it can be GCed; this
     * object may live on after, if submitAsync returns an incomplete future.
     */
    @CheckForNull Runnable task;

    /** Thread that called execute(). Set in execute, cleared when delegate.execute() returns. */
    @CheckForNull @LazyInit Thread submitting;

    return super.pendingToString();
  }

  /**
   * Must be called at the end of each subclass's constructor. This method performs the "real"
   * initialization; we can't put this in the constructor because, in the case where futures are
   * already complete, we would not initialize the subclass before calling {@link
   * #collectValueFromNonCancelledFuture}. As this is called after the subclass is constructed,

		}
	}

	log.Debug("calling CreateInpodRules")
	if err := s.netnsRunner(openNetns, func() error {
		return s.podIptables.CreateInpodRules(log, HostProbeSNATIP, HostProbeSNATIPV6, ingressMode)
	}); err != nil {
		log.Errorf("failed to update POD inpod: %s/%s %v", pod.Namespace, pod.Name, err)
		return err
	}

	// For *any* failures after calling `CreateInpodRules`, we must return PartialAdd error.

   * in a {@code RuntimeException}. <b>Note:</b> Be sure to declare all of the checked exception
   * types your try block can throw when calling an overload of this method so as to avoid losing
   * the original exception type.
   *
   * <p>This method always throws, and as such should be called as {@code throw closer.rethrow(e);}
   * to ensure the compiler knows that it will throw.
   *

Actually, all (or most) of the web frameworks work in this same way.

You never call those functions directly. They are called by your framework (in this case, **FastAPI**).

package cmd

import (
	"bytes"
	"encoding/xml"
	"fmt"
	"io"
	"net/http"
	"net/http/httptest"
	"strconv"
	"testing"

	"github.com/minio/minio/internal/auth"
)

// Wrapper for calling RemoveBucket HTTP handler tests for both Erasure multiple disks and single node setup.
func TestRemoveBucketHandler(t *testing.T) {

   * note that the execution order of all listeners is ultimately chosen by the implementations of
   * the supplied executors.
   *
   * <p>This method is idempotent. Calling it several times in parallel is semantically equivalent
   * to calling it exactly once.
   *
   * @since 10.0 (present in 1.0 as {@code run})
   */
  public void execute() {