}
  }

  private static boolean equal(@Nullable Object a, @Nullable Object b) {
    return a == b || (a != null && a.equals(b));
  }

  // This one-liner saves us from some ugly casts
  protected Entry<K, V> entry(K key, V value) {
    return mapEntry(key, value);
  }

  @Override
  protected void expectContents(Collection<Entry<K, V>> expected) {

   * scattered in memory and thus don't interfere much with each
   * other. But Atomic objects residing in arrays will tend to be
   * placed adjacent to each other, and so will most often share
   * cache lines (with a huge negative performance impact) without
   * this precaution.
   *
   * In part because Cells are relatively large, we avoid creating
   * them until they are needed.  When there is no contention, all

Esa documentación aparecerá en la Swagger UI en `/docs` en tu API, y permitirá a los desarrolladores externos saber cómo construir la *API externa*.

Este ejemplo no implementa el callback en sí (eso podría ser solo una línea de código), solo la parte de documentación.

/// tip | Consejo

El callback real es solo un request HTTP.

	}

	arnMsg := color.Blue("SQS ARNs: ")
	for _, arn := range arns {
		arnMsg += color.Bold(fmt.Sprintf("%s ", arn))
	}

	logger.Startup(arnMsg + "\n")
}

// Prints startup message for command line access. Prints link to our documentation
// and custom platform specific message.
func printCLIAccessMsg(endPoint string, alias string) {
	// Get saved credentials.
	cred := globalActiveCred

```

</div>

/// note

The command `uvicorn main:app` refers to:

* `main`: the file `main.py` (the Python "module").
* `app`: the object created inside of `main.py` with the line `app = FastAPI()`.

It is equivalent to:

```Python
from main import app
```

///

# FastAPI CLI { #fastapi-cli }

**FastAPI <abbr title="command line interface - 命令列介面">CLI</abbr>** 是一個命令列程式，你可以用它來啟動你的 FastAPI 應用程式、管理你的 FastAPI 專案，等等。

當你安裝 FastAPI（例如使用 `pip install "fastapi[standard]"`）時，會附帶一個可以在終端機執行的命令列程式。

要在開發時運行你的 FastAPI 應用程式，你可以使用 `fastapi dev` 指令：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev

The [mc sql](https://docs.min.io/community/minio-object-store/reference/minio-mc/mc-sql.html) command can be used for executing queries using the command line.

(*) Parquet is disabled on the MinIO server by default. See below how to enable it.

## Enabling Parquet Format

Parquet is DISABLED by default since hostile crafted input can easily crash the server.

 */
public abstract class StringUtil {

    /**
     * Do not instantiate.
     */
    protected StringUtil() {
    }

    /**
     * A system line separator.
     */
    public static final String RETURN_STRING = System.getProperty("line.separator");

    /**
     * An empty string <code>""</code>.
     */
    public static final String EMPTY = "";

    /**
     * An empty array of strings.

      </codeSegments>
    </class>
    <!-- /BuildProfile support -->
    <class locationTracker="locations">
      <name>InputLocation</name>
      <version>1.2.0+</version>
      <fields>
        <!-- line, column and source fields are auto-generated by Modello -->
      </fields>
      <codeSegments>
        <codeSegment>
          <version>1.2.0+</version>
          <code>

    @Override

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

/**
 * JUnit 5 tests for {@link TestLocking}.
 * Tests command line argument parsing and basic field initialization.
 * Does not require a real SMB server - focuses on application logic.
 */
@ExtendWith(MockitoExtension.class)
class TestLockingTest {

    private PrintStream originalOut;