When you install FastAPI with `pip install "fastapi[standard]"` it comes with the `standard` group of optional dependencies:

Used by Pydantic:

* [`email-validator`](https://github.com/JoshData/python-email-validator) - for email validation.

Used by Starlette:

* [`httpx`](https://www.python-httpx.org) - Required if you want to use the `TestClient`.

 * Parameters can be stored as any Object type and retrieved with type conversion
 * support for common types like String.</p>
 *
 * <p>This class is commonly used to pass configuration parameters to data store
 * implementations during crawling operations, allowing for flexible parameter
 * handling without tight coupling to specific parameter schemas.</p>
 */
public class DataStoreParams {

import jakarta.annotation.Resource;

/**
 * Service class for managing duplicate host configuration CRUD operations.
 * This service provides functionality to create, read, update, and delete
 * duplicate host configurations used by the Fess crawler system.
 *
 * <p>Duplicate host configurations allow administrators to define hostname patterns
 * that should be treated as equivalent during crawling. This helps avoid indexing

        configureConfigurations(project);
        configureCompile(project);
        configureInputNormalization(project);

        // convenience access to common versions used in dependencies
        project.getExtensions().getExtraProperties().set("versions", VersionProperties.getVersions());
    }

    /**
     * Makes dependencies non-transitive.
     * <p>

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.elevateword;

/**
 * The download form for Elevate Word.
 * This form is used for downloading elevate word configurations from the admin interface.
 *
 */
public class DownloadForm {

    /**
     * Default constructor.
     */
    public DownloadForm() {

    url: https://github.com/fastapi/fastapi/discussions/categories/questions
  - name: Show and tell
    about: Show what you built with FastAPI or to be used with FastAPI.
    url: https://github.com/fastapi/fastapi/discussions/categories/show-and-tell
  - name: Translations
    about: Coordinate translations in GitHub Discussions.

 *
 * @param <K> the type of the keys in the map
 * @param <V> the type of the values in the map
 * @param <E> the type of the {@link InternalEntry} entry implementation used internally
 * @param <S> the type of the {@link Segment} entry implementation used internally
 * @author Bob Lee
 * @author Charles Fry
 * @author Doug Lea ({@code ConcurrentHashMap})
 */
// TODO(kak): Consider removing @CanIgnoreReturnValue from this class.

		},
		config.HelpKV{
			Key:         target.KafkaBatchSize,
			Description: "batch size of the events; used only when queue_dir is set",
			Optional:    true,
			Type:        "number",
		},
		config.HelpKV{
			Key:         target.KafkaBatchCommitTimeout,
			Description: "commit timeout set for the batch; used only when batch_size > 1",
			Optional:    true,
			Type:        "duration",
		},
	}

/**
 * Form for uploading stemmer override files to the Fess search engine.
 * Stemmer override allows custom rules to override the default stemming behavior for specific words.
 * This form is used in the admin interface to upload custom stemmer override dictionary files.
 */
public class UploadForm {

    /**
     * The dictionary ID that identifies which stemmer override dictionary configuration to update.

import org.codelibs.fess.dict.DictionaryItem;

import jakarta.annotation.PostConstruct;

/**
 * Creator for character mapping dictionary files.
 * Handles the creation and management of character mapping dictionaries used for text normalization.
 */
public class CharMappingCreator extends DictionaryCreator {
    private static final Logger logger = LogManager.getLogger(CharMappingCreator.class);

    /**