* 直接提供 2 种交互式文档 web 界面。

---

虽然我们才刚刚开始，但其实你已经了解了这一切是如何工作的。

尝试更改下面这行代码：

```Python
    return {"item_name": item.name, "item_id": item_id}
```

......从：

```Python
        ... "item_name": item.name ...
```

......改为：

```Python
        ... "item_price": item.price ...
```

......注意观察编辑器是如何自动补全属性并且还知道它们的类型：

from fastapi import FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str = Field(examples=["Foo"])
    description: str | None = Field(default=None, examples=["A very nice Item"])
    price: float = Field(examples=[35.4])
    tax: float | None = Field(default=None, examples=[3.2])


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item):

  var immutable = false

  var canUseHeaderValue = true
  var headerValue: String? = null

  loop@ for (i in 0 until headers.size) {
    val name = headers.name(i)
    val value = headers.value(i)

    when {
      name.equals("Cache-Control", ignoreCase = true) -> {
        if (headerValue != null) {
          // Multiple cache-control headers means we can't use the raw value.

    }

    /**
     * Returns the supplied workstation name.
     *
     * @return A <code>String</code> containing the supplied workstation name.
     */
    public String getSuppliedWorkstation() {
        return this.suppliedWorkstation;
    }

    /**
     * Sets the supplied workstation name for this message.
     *
     * @param suppliedWorkstation

    @ValueSource(strings = { "", "svc/******@****.***" })
    @DisplayName("Name parameter is ignored (null/empty/arbitrary)")
    void nameParameter_isIgnoredAndDoesNotAffectResult(String name) {
        // Arrange
        StaticJAASConfiguration cfg = new StaticJAASConfiguration();

        // Act
        AppConfigurationEntry[] entries = cfg.getAppConfigurationEntry(name);

        // Assert

                    "summary": "Path Examples",
                    "operationId": "path_examples_path_examples__item_id__get",
                    "parameters": [
                        {
                            "name": "item_id",
                            "in": "path",
                            "required": True,
                            "schema": {
                                "type": "string",

    /**
     * {@inheritDoc}
     *
     * @see javax.security.auth.login.Configuration#getAppConfigurationEntry(java.lang.String)
     */
    @Override
    public AppConfigurationEntry[] getAppConfigurationEntry(String name) {
        return new AppConfigurationEntry[] {
                new AppConfigurationEntry("com.sun.security.auth.module.Krb5LoginModule", LoginModuleControlFlag.REQUIRED, this.options) };
    }

 */
public class MsrpcSamrConnect2 extends samr.SamrConnect2 {

    /**
     * Creates a new request to connect to the SAM service.
     *
     * @param server the server name to connect to
     * @param access the desired access rights
     * @param policyHandle the policy handle to be populated
     */

 */
public class MsrpcSamrConnect4 extends samr.SamrConnect4 {

    /**
     * Creates a new request to connect to the SAM service.
     *
     * @param server the server name to connect to
     * @param access the desired access rights
     * @param policyHandle the policy handle to be populated
     */

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