*/
    return (int) Math.pow(a, 1.0 / concentration);
  }

  @AfterExperiment
  void tearDown() {
    double req = requests.get();
    double hit = req - misses.get();

    // Currently, this is going into /dev/null, but I'll fix that
    System.out.println("hit rate: " + hit / req);
  }

  // for proper distributions later:
  // import JSci.maths.statistics.ProbabilityDistribution;

    arraycopy(contents, 0, result, 0, contents.length);
    return result;
  }

  /*
   * a "type A" unmodifiable collection freaks out proactively, even if there
   * wasn't going to be any actual work to do anyway
   */

  @Override
  public boolean addAll(Collection<? extends E> elementsToAdd) {
    throw up();
  }

  @Override

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			if ch, ok := val.(chan struct{}); ok && ch != nil {
				// Close previous non-nil channel.
				xioutil.SafeClose(ch)
			}
		}
		globalServiceFreezeCnt = 0 // Don't risk going negative.
	}
	globalServiceFreezeMu.Unlock()

  interface B {}

  public void testEquals() {
    new EqualsTester()
        .addEqualityGroup(newDelegatingList(LIST1))
        // Actually, this violates List#equals contract.
        // But whatever, no one is going to proxy List (hopefully).
        .addEqualityGroup(newDelegatingList(LIST1))
        .addEqualityGroup(newDelegatingList(LIST2))
        .addEqualityGroup(
            newProxyWithEqualsForInterfaces(List.class, Runnable.class),

	}

	DB.Migrator().DropTable(&Post{}, &Category{}, "post_categories")
	DB.AutoMigrate(&Post{}, &Category{})

	post := Post{
		Title: "Hello World",
		Categories: []*Category{
			{Title: "Coding"},
			{Title: "Golang"},
		},
	}

	if err := DB.Create(&post).Error; err != nil {
		t.Errorf("Failed, got error: %v", err)
	}
}

func TestPostgresOnConstraint(t *testing.T) {

		var hint string
		if endpoint.URL != nil {
			hint = fmt.Sprintf("Drive '%s' does not support O_DIRECT flags, MinIO erasure coding requires filesystems with O_DIRECT support", endpoint.Path)
		} else {
			hint = "Drives do not support O_DIRECT flags, MinIO erasure coding requires filesystems with O_DIRECT support"
		}
		logger.Fatal(config.ErrUnsupportedBackend(err).Hint("%s", hint), "Unable to initialize backend")

This would be useful if you want to receive keys that you don't already know.

---

Another useful case is when you want to have keys of another type (e.g., `int`).

That's what we are going to see here.

In this case, you would accept any `dict` as long as it has `int` keys with `float` values:

{* ../../docs_src/body_nested_models/tutorial009_py39.py hl[7] *}

/// tip

/**
 * DCE/RPC handle implementation for named pipe communications.
 * This class provides DCE/RPC communication over SMB named pipes.
 */
public class DcerpcPipeHandle extends DcerpcHandle {

    /* This 0x20000 bit is going to get chopped! */
    final static int pipeFlags = 0x2019F << 16 | SmbPipeResource.PIPE_TYPE_RDWR | SmbPipeResource.PIPE_TYPE_DCE_TRANSACT;

    private final SmbNamedPipe pipe;
    private final SmbPipeHandleInternal handle;

/**
 * A test which demonstrates maven's recursive inheritance where
 * a distinct value is taken from each parent contributing to
 * the final model of the project being assembled. There is no
 * overriding going on amongst the models being used in this test:
 * each model in the lineage is providing a value that is not present
 * anywhere else in the lineage. We are just making sure that values