represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions

isEnabled){g(this.element).trigger(t);var n=_.findShadowRoot(this.element),i=g.contains(null!==n?n:this.element.ownerDocument.documentElement,this.element);if(t.isDefaultPrevented()||!i)return;var o=this.getTipElement(),r=_.getUID(this.constructor.NAME);o.setAttribute("id",r),this.element.setAttribute("aria-describedby",r),this.setContent(),this.config.animation&&g(o).addClass(qe);var s="function"==typeof this.config.placement?this.config.placement.call(this,o,this.element):this.config.placement...

本章添加上一章示例中欠缺的部分，实现完整的安全流。

## 获取 `username` 和 `password`

首先，使用 **FastAPI** 安全工具获取 `username` 和 `password`。

OAuth2 规范要求使用**密码流**时，客户端或用户必须以表单数据形式发送 `username` 和 `password` 字段。

并且，这两个字段必须命名为 `username` 和 `password` ，不能使用 `user-name` 或 `email` 等其它名称。

不过也不用担心，前端仍可以显示终端用户所需的名称。

数据库模型也可以使用所需的名称。

但对于登录*路径操作*，则要使用兼容规范的 `username` 和 `password`，（例如，实现与 API 文档集成）。

该规范要求必须以表单数据形式发送 `username` 和 `password`，因此，不能使用 JSON 对象。

### `Scope`（作用域）

 * verification).
 */
private val VERIFY_AS_IP_ADDRESS = "([0-9a-fA-F]*:[0-9a-fA-F:.]*)|([\\d.]+)".toRegex()

/** Returns true if this string is not a host name and might be an IP address. */
fun String.canParseAsIpAddress(): Boolean = VERIFY_AS_IP_ADDRESS.matches(this)

/**
 * Returns true if the length is not valid for DNS (empty or greater than 253 characters), or if any

      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions

 * accounts. SIDs are commonly represented using a textual format such as
 * <tt>S-1-5-21-1496946806-2192648263-3843101252-1029</tt> but they may
 * also be resolved to yield the name of the associated Windows account
 * such as <tt>Administrators</tt> or <tt>MYDOM\alice</tt>.
 * <p>
 * Consider the following output of <tt>examples/SidLookup.java</tt>:
 * 
 * <pre>

    * 📤 **⚗** 👉, 👐.
* 📤 **↔** **🤝** 🛠️ (1️⃣ 🚚 🔐 🕸 🎚, ⏭ 🇺🇸🔍) 🤙 **<a href="https://en.wikipedia.org/wiki/Server_Name_Indication" class="external-link" target="_blank"><abbr title="Server Name Indication">👲</abbr></a>**.
    * 👉 👲 ↔ ✔ 1️⃣ 👁 💽 (⏮️ **👁 📢 📢**) ✔️ **📚 🇺🇸🔍 📄** &amp; 🍦 **💗 🇺🇸🔍 🆔/🈸**.
    * 👉 👷, **👁** 🦲 (📋) 🏃 🔛 💽, 👂 🔛 **📢 📢 📢**, 🔜 ✔️ **🌐 🇺🇸🔍 📄** 💽.

sont appelés des **types génériques** ou **Generics**.

### Classes en tant que types

Vous pouvez aussi déclarer une classe comme type d'une variable.

Disons que vous avez une classe `Person`, avec une variable `name` :

{*../../docs_src/python_types/tutorial010.py hl[1:3] *}


Vous pouvez ensuite déclarer une variable de type `Person` :

{*../../docs_src/python_types/tutorial010.py hl[6] *}

      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions

          "uid": "grafana"
        },
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "type": "dashboard"
      }
    ]
  },
  "__inputs": [
    {
      "name": "DS_PROMETHEUS",
      "label": "Prometheus",
      "description": "",
      "type": "datasource",
      "pluginId": "prometheus",