* remove()} if this fluent iterable's iterator does.
   *
   * <p><b>{@code Stream} equivalent:</b> {@link Stream#limit} (same).
   *
   * @param maxSize the maximum number of elements in the returned fluent iterable
   * @throws IllegalArgumentException if {@code size} is negative
   */
  public final FluentIterable<E> limit(int maxSize) {

   * remove()} if this fluent iterable's iterator does.
   *
   * <p><b>{@code Stream} equivalent:</b> {@link Stream#limit} (same).
   *
   * @param maxSize the maximum number of elements in the returned fluent iterable
   * @throws IllegalArgumentException if {@code size} is negative
   */
  public final FluentIterable<E> limit(int maxSize) {

然后，使用 `Field` 定义模型的属性：

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[11:14] *}

`Field` 的工作方式和 `Query`、`Path`、`Body` 相同，参数也相同。

/// note | 技术细节

实际上，`Query`、`Path` 以及你接下来会看到的其它对象，会创建公共 `Param` 类的子类的对象，而 `Param` 本身是 Pydantic 中 `FieldInfo` 的子类。

Pydantic 的 `Field` 返回也是 `FieldInfo` 的类实例。

`Body` 直接返回的也是 `FieldInfo` 的子类的对象。后文还会介绍一些 `Body` 的子类。

注意，从 `fastapi` 导入的 `Query`、`Path` 等对象实际上都是返回特殊类的函数。

///

     *
     * @return whether the FD was previously open but became invalid
     */
    boolean isStale();

    /**
     * Unwraps this handle to the specified type.
     *
     * @param <T> the type to unwrap to
     * @param type the class of the type to unwrap to
     * @return unwrapped instance
     */
    <T extends SmbPipeHandle> T unwrap(Class<T> type);

        private String s;

        /**
         * @param i
         *            the i to set
         */
        public void setI(final int i) {
            this.i = i;
        }

        /**
         * @return the i
         */
        public int getI() {
            return i;
        }

        /**
         * @param s
         *            the s to set
         */

from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial004_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body.{request.param}")

    client = TestClient(mod.app)
    return client


def test_put_all(client: TestClient):
    response = client.put(

import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;

import java.util.ArrayList;

     */
    public int getRequestType() {
        return requestType;
    }

    /**
     * Sets the request type
     *
     * @param requestType The requestType to set.
     *                    The Request type value should be either
     *                    <code>TransferEvent.REQUEST_GET</code> or <code>TransferEvent.REQUEST_PUT</code>.

   * RuntimeException}, {@link Error}, {@code declaredType1}, or {@code declaredType2}.
   *
   * @param throwable the Throwable to possibly propagate
   * @param declaredType1 any checked exception type declared by the calling method
   * @param declaredType2 any other checked exception type declared by the calling method

   * its first position but with its final value. The {@code duplicates} map is modified.
   *
   * @param entries the original array of entries including duplicates
   * @param n the number of valid entries in {@code entries}
   * @param newN the expected number of entries once duplicates are removed
   * @param duplicates a map of canonical {@link Entry} objects for each duplicate key. This map