try {
            for (String line : Files.readAllLines(referencedFile.toPath())) {
                if (line.contains(text)) {
                    return true;
                }
            }
        } catch (IOException e) {
            // ignore
        }
        return false;
    }

    private String getFileName(String match, File currentFile) {

しかし、このガイドでは、それらがどのように使用されることを意図しているかを多かれ少なかれ、示しています。

///

### Pydanticの`exclude_unset`パラメータの使用

部分的な更新を受け取りたい場合は、Pydanticモデルの`.dict()`の`exclude_unset`パラメータを使用すると非常に便利です。

`item.dict(exclude_unset=True)`のように。

これにより、`item`モデルの作成時に設定されたデータのみを持つ`dict`が生成され、デフォルト値は除外されます。

これを使うことで、デフォルト値を省略して、設定された（リクエストで送られた）データのみを含む`dict`を生成することができます:

{* ../../docs_src/body_updates/tutorial002.py hl[34] *}

  if command -v brew &> /dev/null && brew list pyenv &> /dev/null; then
    # On "ventura-slcn" VMs, pyenv is managed via Homebrew.
    echo "pyenv is installed and managed by homebrew."
    (brew update && brew upgrade pyenv) || true
  else
    echo "pyenv is not managed by homebrew. Installing it via github..."
    # On "ventura" VMs, pyenv is not managed by Homebrew. Install the latest
    # pyenv from github.
    rm -rf "$PYENV_ROOT"

	major, minor := hdr.PAXRecords[paxGNUSparseMajor], hdr.PAXRecords[paxGNUSparseMinor]
	switch {
	case major == "0" && (minor == "0" || minor == "1"):
		is1x0 = false
	case major == "1" && minor == "0":
		is1x0 = true
	case major != "" || minor != "":
		return nil, nil // Unknown GNU sparse PAX version
	case hdr.PAXRecords[paxGNUSparseMap] != "":
		is1x0 = false // 0.0 and 0.1 did not have explicit version records, so guess
	default:

pkg text/template/parse, method (*NilNode) Copy() Node
pkg text/template/parse, method (*NilNode) String() string
pkg text/template/parse, method (*NilNode) Type() NodeType
pkg text/template/parse, method (*Tree) ErrorContext(Node) (string, string)
pkg text/template/parse, method (ActionNode) Position() Pos
pkg text/template/parse, method (BoolNode) Position() Pos
pkg text/template/parse, method (BranchNode) Position() Pos

# Environment Variables { #environment-variables }

/// tip

If you already know what "environment variables" are and how to use them, feel free to skip this.

///

An environment variable (also known as "**env var**") is a variable that lives **outside** of the Python code, in the **operating system**, and could be read by your Python code (or by other programs as well).

```

</div>

/// note

La commande `uvicorn main:app` fait référence à :

* `main` : le fichier `main.py` (le module Python).
* `app` : l'objet créé dans `main.py` via la ligne `app = FastAPI()`.
* `--reload` : l'option disant à uvicorn de redémarrer le serveur à chaque changement du code. À ne pas utiliser en production !

///

On utilise alors l'argument `deprecated=True` de `Query` :

{* ../../docs_src/query_params_str_validations/tutorial010.py hl[18] *}

La documentation le présentera comme il suit :

<img src="/img/tutorial/query-params-str-validations/image01.png">

///

/// warning

These are very technical details about the standards **JSON Schema** and **OpenAPI**.

If the ideas above already work for you, that might be enough, and you probably don't need these details, feel free to skip them.

///

Before OpenAPI 3.1.0, OpenAPI used an older and modified version of **JSON Schema**.

JSON Schema didn't have `examples`, so OpenAPI added its own `example` field to its own modified version.

* `@app.post()`
* `@app.put()`
* `@app.delete()`

And the more exotic ones:

* `@app.options()`
* `@app.head()`
* `@app.patch()`
* `@app.trace()`

/// tip

You are free to use each operation (HTTP method) as you wish.

**FastAPI** doesn't enforce any specific meaning.

The information here is presented as a guideline, not a requirement.