import com.google.common.testing.EqualsTester;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Subscriber}.
 *
 * @author Cliff Biffle
 * @author Colin Decker
 */
public class SubscriberTest extends TestCase {

import java.util.NavigableSet;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.SortedMap;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Skeletal implementation of {@link NavigableMap}.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Supplier;
import java.util.concurrent.Callable;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Static utility methods pertaining to the {@link Callable} interface.
 *
 * @author Isaac Shum
 * @since 1.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault

```console
$ python -m venv .venv
```

</div>

/// details | O que esse comando significa

* `python`: usa o programa chamado `python`
* `-m`: chama um módulo como um script, nós diremos a ele qual módulo vem em seguida
* `venv`: usa o módulo chamado `venv` que normalmente vem instalado com o Python
* `.venv`: cria o ambiente virtual no novo diretório `.venv`

///

////

//// tab | `uv`

import static com.google.common.escape.ReflectionFreeAssertThrows.assertThrows;

import com.google.common.annotations.GwtCompatible;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link UnicodeEscaper}.
 *
 * @author David Beaumont
 */
@GwtCompatible
public class UnicodeEscaperTest extends TestCase {

  private static final String SMALLEST_SURROGATE =

import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeoutException;
import junit.framework.AssertionFailedError;
import org.checkerframework.checker.nullness.qual.Nullable;

/** Replacements for JUnit's {@code assertThrows} that work under GWT/J2CL. */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
final class ReflectionFreeAssertThrows {

import static com.google.common.escape.ReflectionFreeAssertThrows.assertThrows;

import com.google.common.annotations.GwtCompatible;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link UnicodeEscaper}.
 *
 * @author David Beaumont
 */
@GwtCompatible
public class UnicodeEscaperTest extends TestCase {

  private static final String SMALLEST_SURROGATE =

import com.google.common.testing.EqualsTester;
import com.google.common.testing.NullPointerTester;
import java.util.Map.Entry;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link ImmutableMultimap}.
 *
 * @author Jared Levy
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class ImmutableMultimapTest extends TestCase {

    Como sempre, no FastAPI você pode combinar `def` e `async def` conforme necessário.

    Se você precisar de uma atualização sobre quando usar qual, confira a seção _"Com pressa?"_ na documentação sobre [`async` e `await`](../async.md#in-a-hurry){.internal-link target=_blank}.

import com.google.common.util.concurrent.TestExceptions.SomeError;
import java.util.concurrent.CancellationException;
import java.util.concurrent.Executor;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Test for {@link FutureCallback}.
 *
 * @author Anthony Zana
 */
@GwtCompatible
public class FutureCallbackTest extends TestCase {
  public void testSameThreadSuccess() {