## Cài đặt FastAPI

Bước đầu tiên là cài đặt FastAPI.

Với hướng dẫn này, bạn có thể muốn cài đặt nó với tất cả các phụ thuộc và tính năng tùy chọn:

<div class="termy">

```console
$ pip install "fastapi[all]"

---> 100%
```

</div>

...dó cũng bao gồm `uvicorn`, bạn có thể sử dụng như một server để chạy code của bạn.

/// note

Bạn cũng có thể cài đặt nó từng phần.

type rebalanceAdminStatus struct {
	ID        string                // identifies the ongoing rebalance operation by a uuid
	Pools     []rebalancePoolStatus `json:"pools"` // contains all pools, including inactive
	StoppedAt time.Time             `json:"stoppedAt"`
}

func rebalanceStatus(ctx context.Context, z *erasureServerPools) (r rebalanceAdminStatus, err error) {
	// Load latest rebalance status

     */
    public ProcessHelper() {
        // Default constructor
    }

    /**
     * Cleanup method called when the bean is destroyed.
     * Stops all running processes and cleans up resources.
     */
    @PreDestroy
    public void destroy() {
        for (final String sessionId : runningProcessMap.keySet()) {
            if (logger.isInfoEnabled()) {

   * words, for the default {@code expectContents()} implementation, the number of occurrences of
   * each given element has increased by one since the test collection was created, and the number
   * of occurrences of all other elements has not changed.
   *
   * <p>Note: This means that a test like the following will fail if {@code collection} is a {@code
   * Set}:
   *
   * <pre>
   * collection.add(existingElement);

        assertEquals(1024L, mockBasicFileInfo.getSize());
        assertEquals(FileInformation.FILE_BASIC_INFO, mockBasicFileInfo.getFileInformationLevel());

        // Verify all methods were called
        verify(mockBasicFileInfo).getAttributes();
        verify(mockBasicFileInfo).getCreateTime();
        verify(mockBasicFileInfo).getLastWriteTime();
        verify(mockBasicFileInfo).getLastAccessTime();

 *       can be captured for later closing.
 *   <li>There is one last step (the root of the tree), from which you can extract the final result
 *       of the computation. After that result is available (or the computation fails), all objects
 *       captured by any of the steps in the pipeline are closed.
 * </ol>
 *
 * <h3>Starting a pipeline</h3>
 *
 * Start a {@code ClosingFuture} pipeline {@linkplain #submit(ClosingCallable, Executor) from a

    Federation control system then creates and maintains a single
    global virtual IP to load balance incoming HTTP(S) traffic across
    some or all the registered clusters, across all regions. Google's
    GCE L7 LoadBalancer is the first supported implementation, and
	is available in this release.
	([docs](http://kubernetes.io/docs/user-guide/federation/federated-ingress.md))

      assertThrows(IOException.class, () -> failSource.copyTo(okSink));
      // ensure writer was closed IF it was opened (depends on implementation whether or not it's
      // opened at all if source.newReader() throws).
      assertTrue(
          "stream not closed when copying from source with option: " + option,
          !okSink.wasStreamOpened() || okSink.wasStreamClosed());
    }
  }

 * void runManyThings({@literal List<ThingToRun>} thingsToRun) {
 *   for (ThingToRun thingToRun : thingsToRun) {
 *     thingToRun.run(); // say this may throw an exception, but you want to
 *                       // always run all thingsToRun
 *   }
 * }
 * </pre>
 *
 * <p>This is what the code would become:
 *
 * <pre>
 * void runManyThings({@literal List<ThingToRun>} thingsToRun) {

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Deque;
import java.util.Iterator;
import org.jspecify.annotations.Nullable;

/**
 * A deque which forwards all its method calls to another deque. Subclasses should override one or
 * more methods to modify the behavior of the backing deque as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *