return nil, err
	}
	return result, nil
}

func TestJsonpathEval(t *testing.T) {
	f, err := os.Open(filepath.Join("jsondata", "books.json"))
	if err != nil {
		t.Fatal(err)
	}

	b, err := io.ReadAll(f)
	if err != nil {
		t.Fatal(err)
	}

	p := participle.MustBuild(
		&JSONPath{},
		participle.Lexer(sqlLexer),
		participle.CaseInsensitive("Keyword"),
	)
	cases := []struct {
		str string

		},
	}

	jsonData := []byte(`{"three":true,"two":"foo","one":-1}
{"three":false,"two":"bar","one":null}
{"three":true,"two":"baz","one":2.5}
`)

	for i, testCase := range testTable {
		t.Run(fmt.Sprint(i), func(t *testing.T) {

Klaus Post <******@****.***> 1756435188 +0200

## Необов'язкові залежності

Pydantic використовує:

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - для валідації електронної пошти.

Here we are declaring a `UserIn` model, it will contain a plaintext password:

{* ../../docs_src/response_model/tutorial002_py310.py hl[7,9] *}

/// info

To use `EmailStr`, first install <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

{* ../../docs_src/response_model/tutorial002_py310.py hl[7,9] *}

/// info | Informação

Para usar `EmailStr`, primeiro instale <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

Certifique-se de criar um [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ative-o e instale-o, por exemplo:

	if err != nil {
		return nil, err
	}

	inferTypeForArithOp(v)
	v.negate()
	if v.isNumeric() {
		return v, nil
	}
	return nil, errArithMismatchedTypes
}

func (e *JSONPath) evalNode(r Record, tableAlias string) (*Value, error) {
	alias := tableAlias
	if tableAlias == "" {
		alias = baseTableName
	}
	pathExpr := e.StripTableAlias(alias)
	_, rawVal := r.Raw()

{* ../../docs_src/response_model/tutorial002_py310.py hl[7,9] *}

/// info | Info

Um `EmailStr` zu verwenden, installieren Sie zuerst <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

{* ../../docs_src/response_model/tutorial002_py310.py hl[7,9] *}

/// info | Информация

Чтобы использовать `EmailStr`, сначала установите <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

Создайте [виртуальное окружение](../virtual-environments.md){.internal-link target=_blank}, активируйте его и затем установите пакет, например:

想了解更多，请查阅 <a href="https://fastapi.tiangolo.com/zh/benchmarks/" class="internal-link" target="_blank">基准测试</a> 章节。

## 可选依赖

用于 Pydantic：

* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email-validator</code></a> - 用于 email 校验。

用于 Starlette：

* <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - 使用 `TestClient` 时安装。