import java.util.SortedSet;

/**
 * Generators of different types of sets and derived collections from sets.
 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 * @author Hayward Chan
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class SetGenerators {

  public static class ImmutableSetCopyOfGenerator extends TestStringSetGenerator {
    @Override
    protected Set<String> create(String[] elements) {

     *
     * @throws Exception if any.
     */
    @Test
    public void testTrimRootToken() throws Exception {
        assertNull(ReflectionValueExtractor.evaluate("project", project, true));
    }

    /**
     * <p>testArtifactMap.</p>
     *
     * @throws Exception if any.
     */
    @Test
    public void testArtifactMap() throws Exception {
        assertEquals(

	if ctx == nil {
		ctx = context.Background()
	}

	for _, host := range o.Hosts {
		if host == o.Local {
			if found {
				return nil, fmt.Errorf("grid: local host found multiple times")
			}
			found = true
			// No connection to local.
			continue
		}
		m.targets[host] = newConnection(connectionParams{
			ctx:           ctx,
			id:            m.ID,
			local:         o.Local,
			remote:        host,

	if ok := formatErasureV3ThisEmpty(formats); ok {
		t.Fatalf("expected value false, got %t", ok)
	}

	formats[2].Erasure.This = ""
	if ok := formatErasureV3ThisEmpty(formats); !ok {
		t.Fatalf("expected value true, got %t", ok)
	}
}

// Tests xl format migration.
func TestFormatErasureMigrate(t *testing.T) {
	// Get test root.
	rootPath := t.TempDir()

	m := &formatErasureV1{}

		{[]byte("012345678901234"), true, nil},
		{nil, false, nil},
		{[]byte("012345678901234"), true, nil},
		{nil, false, nil},
		{nil, false, io.EOF},
	}},
	{"0123456789012345\r012345678901234\r", []readLineResult{
		{[]byte("0123456789012345"), true, nil},
		{[]byte("\r012345678901234"), true, nil},
		{[]byte("\r"), false, nil},
		{nil, false, io.EOF},
	}},
}

假设你只有一个来自 Pydantic 模型 `Item` 的请求体参数 `item`。

默认情况下，**FastAPI** 将直接期望这样的请求体。

但是，如果你希望它期望一个拥有 `item` 键并在值中包含模型内容的 JSON，就像在声明额外的请求体参数时所做的那样，则可以使用一个特殊的 `Body` 参数 `embed`：

```Python
item: Item = Body(embed=True)
```

比如：

//// tab | Python 3.10+

```Python hl_lines="17"
{!> ../../docs_src/body_multiple_params/tutorial005_an_py310.py!}
```

////

//// tab | Python 3.9+

デフォルトでは、**FastAPI**はそのボディを直接期待します。

しかし、追加のボディパラメータを宣言したときのように、キー `item` を持つ JSON とその中のモデルの内容を期待したい場合は、特別な `Body` パラメータ `embed` を使うことができます:

```Python
item: Item = Body(..., embed=True)
```

以下において:

```Python hl_lines="17"
{!../../docs_src/body_multiple_params/tutorial005.py!}
```

この場合、**FastAPI** は以下のようなボディを期待します:

```JSON hl_lines="2"
{
    "item": {

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Static utility methods pertaining to object arrays.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
@SuppressWarnings("AvoidObjectArrays")
public final class ObjectArrays {

  private ObjectArrays() {}

  /**

    }

    @Override
    Comparable<?> endpoint() {
      throw new IllegalStateException("range unbounded on this side");
    }

    @Override
    boolean isLessThan(Comparable<?> value) {
      return true;
    }

    @Override
    BoundType typeAsLowerBound() {
      throw new IllegalStateException();
    }

    @Override
    BoundType typeAsUpperBound() {

import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Tests for {@code EnumBiMap}.
 *
 * @author Mike Bostock
 * @author Jared Levy
 */
@J2ktIncompatible // EnumBimap
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class EnumBiMapTest extends TestCase {
  private enum Currency {
    DOLLAR,
    FRANC,
    PESO,
    POUND,
    YEN
  }

  private enum Country {