### Adding a Content Extractor

1. **Implement `Extractor`**:
```java
public class MyExtractor extends AbstractExtractor {
    @Override
    public ExtractData getText(InputStream in, Map<String, String> params) {
        ExtractData data = new ExtractData();
        // Extract text
        data.setContent(extractedText);
        return data;
    }
}
```

2. **Register**:
```xml

		if !mountPointsEqual(mounts[2], mp) {
			t.Errorf("got unexpected mountInfo[2]: %#v", mounts[2])
		}
	}
	// Error cases where parsing fails with invalid Freq and Pass params.
	{
		errorCases := []string{
			"/dev/1 /path/to/mount type flags a 0\n",
			"/dev/2 /path/to/mount type flags 0 b\n",
		}
		for _, ec := range errorCases {
			_, rerr := parseMountFrom(strings.NewReader(ec))

Sans Pydantic

Si vous ne voulez pas utiliser des modèles Pydantic, vous pouvez aussi utiliser des paramètres de **Corps**. Pour cela, allez voir la partie de la documentation sur  [Corps de la requête - Paramètres multiples](body-multiple-params.md){.internal-link target=_blank}....

///

## Without Pydantic { #without-pydantic }

     *
     * @see org.codelibs.fess.crawler.extractor.Extractor#getText(java.io.InputStream,
     * java.util.Map)
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            final BufferedInputStream bis = new BufferedInputStream(in);

    @Override
    public int getWeight() {
        return 2; // Higher priority than TikaExtractor (weight=1)
    }

    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        validateInputStream(in);

        try {
            final JsonNode rootNode = objectMapper.readTree(in);
            final StringBuilder textBuilder = new StringBuilder();

## Ohne Pydantic { #without-pydantic }

因为默认值是 `None`， FastAPI 会把 `q` 当作可选参数。

FastAPI 不使用 `Optional[str]` 中的 `Optional`， 但 `Optional` 可以让编辑器提供更好的支持，并检测错误。

///

## 不使用 Pydantic

				"X-Amz-Content-Sha256": payloadSHA256,
			},
			region:   "",
			expected: ErrSignatureDoesNotMatch,
		},
		// (8) Should error with signature does not match. But handles
		// query params which do not precede with "x-amz-" header.
		{
			queryParams: map[string]string{
				"X-Amz-Algorithm":       signV4Algorithm,
				"X-Amz-Date":            now.Format(iso8601Format),
				"X-Amz-Expires":         "60",

import importlib

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(
    name="client",
    params=[
        "app_py39.main",
        "app_an_py39.main",
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.bigger_applications.{request.param}")

    client = TestClient(mod.app)
    return client


def test_users_token_jessica(client: TestClient):