if (expectHasExplicitPort) {
      assertTrue(hp.hasPort());
      assertEquals(expectPort, hp.getPort());
    } else {
      assertFalse(hp.hasPort());
      try {
        hp.getPort();
        fail("Expected IllegalStateException");
      } catch (IllegalStateException expected) {
      }
    }
    assertEquals(expectHost, hp.getHost());

    // Check the post-withDefaultPort() instance (if any).

      assertTrue(observed.contains(striped.get(new Object())));
    }

    try {
      striped.getAt(-1);
      fail();
    } catch (RuntimeException expected) {
    }

    try {
      striped.getAt(striped.size());
      fail();
    } catch (RuntimeException expected) {
    }
  }

  public void testMaxSize() {
    for (Striped<?> striped :
        ImmutableList.of(

   * executor promptly, or else the returned {@code ListenableFuture} may fail to work. The task's
   * execution consists of blocking until the input future is {@linkplain Future#isDone() done}, so
   * each call to this method may claim and hold a thread for an arbitrary length of time. Use of
   * bounded executors or other executors that may fail to execute a task promptly may result in
   * deadlocks.
   *

    if (expectHasExplicitPort) {
      assertTrue(hp.hasPort());
      assertEquals(expectPort, hp.getPort());
    } else {
      assertFalse(hp.hasPort());
      try {
        hp.getPort();
        fail("Expected IllegalStateException");
      } catch (IllegalStateException expected) {
      }
    }
    assertEquals(expectHost, hp.getHost());

    // Check the post-withDefaultPort() instance (if any).

      assertTrue(observed.contains(striped.get(new Object())));
    }

    try {
      striped.getAt(-1);
      fail();
    } catch (RuntimeException expected) {
    }

    try {
      striped.getAt(striped.size());
      fail();
    } catch (RuntimeException expected) {
    }
  }

  public void testMaxSize() {
    for (Striped<?> striped :
        ImmutableList.of(

import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Arrays;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

    plan0.tcpConnectThrowable = IOException("boom!")
    val plan1 = routePlanner.addPlan()
    plan1.tcpConnectDelayNanos = 270.ms // Connect fail at time = 520 ms.
    plan1.tcpConnectThrowable = IOException("boom!")
    val plan2 = routePlanner.addPlan()
    plan2.tcpConnectDelayNanos = 30.ms // Connect fail at time = 530 ms.
    plan2.tcpConnectThrowable = IOException("boom!")
    val plan3 = routePlanner.addPlan()

Bedenken Sie, dass:

```Python
= None
```

oder:

```Python
= Query(default=None)
```

der wichtigste Teil ist, um einen Parameter optional zu machen, da dieses `None` der Defaultwert ist, und das ist es, was diesen Parameter **nicht erforderlich** macht.

Der Teil mit `Union[str, None]` erlaubt es Ihrem Editor, Sie besser zu unterstützen, aber er sagt FastAPI nicht, dass dieser Parameter optional ist.

///

# Comma-separated list of files to include.
# Each item may be enclosed in quotes to gracefully include spaces. Items are trimmed before being loaded.
# If the first character of an item is a question mark, the load will silently fail if the file does not exist.
${includes} = ?"${maven.user.conf}/maven-system.properties", \
              ?"${maven.project.conf}/maven-system.properties"

#
# Settings
#
# Define the default three levels for settings.

# This env is only valid when RBE is available on the selected platform, since
# it enables a derived --config setting.  If RBE is not available (i.e. there
# is no --config setting), bazel would fail and quit. This script does a quick
# check This script checks for such errors early
if ! grep "rbe_$TFCI_BAZEL_TARGET_SELECTING_CONFIG_PREFIX" .bazelrc; then
  cat <<EOF