これは、テーマがその言語をサポートしていないことを意味します (この場合は、`xx`の2文字の偽のコード) 。

ただし、心配しないでください。テーマ言語を英語に設定して、ドキュメントの内容を翻訳できます。

その必要がある場合は、新しい言語の`mkdocs.yml`を次のように編集してください:

```YAML hl_lines="5"
site_name: FastAPI
# More stuff
theme:
  # More stuff
  language: xx
```

その言語を`xx` (あなたの言語コード) から`en`に変更します。

その後、ライブサーバーを再起動します。

#### 結果のプレビュー

`./scripts/docs.py`のスクリプトを`live`コマンドで使用すると、現在の言語で利用可能なファイルと翻訳のみが表示されます。

$gray-200;\n    }\n  }\n\n  p:last-child {\n    margin-bottom: 0;\n  }\n\n  // Themes for different contexts\n  &.callout-danger {\n    border-left-color: darken(theme-color('danger'), 10%);\n  }\n\n  &.callout-warning {\n    border-left-color: darken(theme-color('warning'), 10%);\n  }\n\n  &.callout-info {\n    border-left-color: darken(theme-color('info'), 10%);\n  }\n\n  &.callout-success {\n    border-left-color: darken(theme-color('success'), 10%);\n  }\n}\n","//\n// Component: Alert\n//\n\n.alert...

'layout-sm-footer-fixed',\n    FOOTER_MD_FIXED: 'layout-md-footer-fixed',\n    FOOTER_LG_FIXED: 'layout-lg-footer-fixed',\n    FOOTER_XL_FIXED: 'layout-xl-footer-fixed',\n  }\n\n  const Default = {\n    controlsidebarSlide: true,\n    scrollbarTheme : 'os-theme-light',\n    scrollbarAutoHide: 'l',\n  }\n\n  /**\n   * Class Definition\n   * ====================================================\n   */\n\n  class ControlSidebar {\n    constructor(element, config) {\n      this._element = element\n      this._config...

$alert-padding-x;\n    color: inherit;\n  }\n}\n\n\n// Alternate styles\n//\n// Generate contextual modifier classes for colorizing the alert.\n\n@each $color, $value in $theme-colors {\n  .alert-#{$color} {\n    @include alert-variant(theme-color-level($color, $alert-bg-level), theme-color-level($color, $alert-border-level), theme-color-level($color, $alert-color-level));\n  }\n}\n","@mixin alert-variant($background, $border, $color) {\n  color: $color;\n  @include gradient-bg($background);\n  border-color:...

$alert-padding-x;\n    color: inherit;\n  }\n}\n\n\n// Alternate styles\n//\n// Generate contextual modifier classes for colorizing the alert.\n\n@each $color, $value in $theme-colors {\n  .alert-#{$color} {\n    @include alert-variant(theme-color-level($color, $alert-bg-level), theme-color-level($color, $alert-border-level), theme-color-level($color, $alert-color-level));\n  }\n}\n","@mixin alert-variant($background, $border, $color) {\n  color: $color;\n  @include gradient-bg($background);\n  border-color:...

When you use **FastAPI**, there's a lot more going on, processing the request and response, handling dependencies, executing **your own code**, and particularly, **waiting for the network**. But you will probably still get some nice performance improvements just from the upgrade.

* **`200`** and above are for "Successful" responses. These are the ones you would use the most.
    * `200` is the default status code, which means everything was "OK".
    * Another example would be `201`, "Created". It is commonly used after creating a new record in the database.

TensorFlow supports a wide range of input data formats. For example it can
process images, audio, videos, and text. There are several modules specialized
in taking those formats, modifying them, and/or converting them to intermediate
formats that can be processed by TensorFlow.

These modifications and conversions are handled by a variety of libraries that
have different security properties and provide different levels of confidence

That's what makes it possible to have multiple automatic interactive documentation interfaces, code generation, etc.

OpenAPI has a way to define multiple security "schemes".

By using them, you can take advantage of all these standard-based tools, including these interactive documentation systems.

OpenAPI defines the following security schemes:

* `apiKey`: an application specific key that can come from:
    * A query parameter.
    * A header.

### Writing controllers

Istio provides a few helper libraries to get started writing a controller. While these libraries help, there are still a lot of subtleties in correctly writing (and testing!) a controller properly.