*
 * <p>
 * Toolchains can be obtained through the {@link org.apache.maven.api.services.ToolchainManager ToolchainManager}
 * service. This service provides methods to retrieve and manage toolchains defined
 * in the Maven configuration.
 * </p>
 *
 * <p>
 * The following are key functionalities provided by the Toolchain interface:</p><ul>
 *   <li>Access to the type of the toolchain (e.g., JDK, compiler).</li>

import org.codelibs.fess.crawler.exception.UnsupportedExtractException;

import jakarta.annotation.Resource;

/**
 * Factory class for managing and retrieving {@link Extractor} instances.
 * This class provides methods to add, retrieve, and manage extractors based on a key.
 * It also includes a builder for creating extractors.
 *
 * <p>
 * The factory maintains a map of keys to an array of {@link Extractor} objects.

import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalEntity;

/**
 * Character mapping file handler for managing character mapping dictionaries.
 * This class provides functionality to load, parse, and manage character mapping
 * rules that define how input characters should be transformed to output characters
 * during text analysis and search processing.
 *

### Data protection

}

// Set - sets a metric value along with any provided labels. It is used only
// with Gauge and Counter metrics.
//
// If the MetricName given here is not present in the `MetricsGroup`'s
// descriptors, this function panics.
//
// Panics if `labels` is not a list of ordered label name and label value pairs
// or if all labels for the metric are not provided.

import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing web authentication configurations.
 * Provides CRUD operations for web authentication settings including
 * listing, retrieving, storing, and deleting authentication configurations.
 */
public class WebAuthenticationService {

    /**
     * Default constructor.

 *
 * <p>A graph is composed of a set of nodes and a set of edges connecting pairs of nodes.
 *
 * <p>There are three primary interfaces provided to represent graphs. In order of increasing
 * complexity they are: {@link Graph}, {@link ValueGraph}, and {@link Network}. You should generally
 * prefer the simplest interface that satisfies your use case. See the <a

        assertEquals(mockCredentials, wrapper.getCredentials(), "Initial credentials should be set by constructor");
    }

    @Test
    @DisplayName("Should return the credentials provided in the constructor")
    void testGetCredentials() {
        assertEquals(mockCredentials, wrapper.getCredentials(), "getCredentials should return the initially set credentials");
    }

    @Test

import javax.xml.xpath.XPathFactory;
import javax.xml.xpath.XPathNodes;

import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.w3c.dom.Node;

/**
 * The XPathAPI class provides methods to evaluate XPath expressions and select nodes or node lists from an XML document.
 * It uses the javax.xml.xpath.XPath and javax.xml.xpath.XPathFactory classes to create and evaluate XPath expressions.
 *

You can use any template engine you want with **FastAPI**.

A common choice is Jinja2, the same one used by Flask and other tools.

There are utilities to configure it easily that you can use directly in your **FastAPI** application (provided by Starlette).

## Install dependencies { #install-dependencies }

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and install `jinja2`: