Timestamp       int64  // Timestamp set at the time of initialization.
	TimeLastRefresh int64  // Timestamp for last lock refresh.
	Source          string // Contains line, function and filename requesting the lock.
	Group           bool   // indicates if it was a group lock.
	Owner           string // Owner represents the UUID of the owner who originally requested the lock.

**FastAPI** 不強制任何特定的意義。

這裡的資訊作為一個指南，而不是要求。

例如，當使用 GraphQL 時，你通常只使用 `POST` 操作。

///

### 第四步：定義「路徑操作函式」 { #step-4-define-the-path-operation-function }

這是我們的「**路徑操作函式**」：

* **path**：是 `/`。
* **operation**：是 `get`。
* **function**：是裝飾器下面的函式（在 `@app.get("/")` 下面）。

{* ../../docs_src/first_steps/tutorial001_py310.py hl[7] *}

這就是一個 Python 函式。

* etc.

{* ../../docs_src/response_status_code/tutorial001_py310.py hl[6] *}

/// note | Nota

Observa que `status_code` es un parámetro del método "decorador" (`get`, `post`, etc). No de tu *path operation function*, como todos los parámetros y body.

///

El parámetro `status_code` recibe un número con el código de estado HTTP.

/// info | Información

		}, nil
	case http.StatusUnauthorized:
		return User{}, ErrAccessTokenExpired
	}
	return User{}, fmt.Errorf("Unable to lookup - keycloak user lookup returned %v", resp.Status)
}

// Option is a function type that accepts a pointer Target
type Option func(*KeycloakProvider)

// WithTransport provide custom transport
func WithTransport(transport http.RoundTripper) Option {
	return func(p *KeycloakProvider) {

import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.Consumer;

import org.eclipse.aether.transfer.AbstractTransferListener;
import org.eclipse.aether.transfer.TransferCancelledException;
import org.eclipse.aether.transfer.TransferEvent;

`Header` es una clase "hermana" de `Path`, `Query` y `Cookie`. También hereda de la misma clase común `Param`.

Pero recuerda que cuando importas `Query`, `Path`, `Header`, y otros de `fastapi`, en realidad son funciones que retornan clases especiales.

///

/// info | Información

Para declarar headers, necesitas usar `Header`, porque de otra forma los parámetros serían interpretados como parámetros de query.

///

   * in progress.
   *
   * <p><b>Warning:</b> This method will produce different output than most other languages do when
   * running the same hash function on the equivalent input. For cross-language compatibility, use
   * {@link #putString}, usually with a charset of UTF-8. For other use cases, use {@code
   * putUnencodedChars}.
   *

import java.util.ArrayList;
import java.util.List;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.ExecutionException;
import java.util.function.IntConsumer;
import java.util.stream.IntStream;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Test Java8 map.compute in concurrent cache context. */
@NullUnmarked

 * under the License.
 */
package org.apache.maven.api.services;

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Objects;
import java.util.Optional;
import java.util.function.UnaryOperator;

import org.apache.maven.api.ProtoSession;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Immutable;
import org.apache.maven.api.annotations.Nonnull;

import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;

import java.util.function.Supplier;
import java.util.stream.Stream;

import javax.security.auth.Subject;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;