* If the value is an Entity object, it will be converted to a Map using BeanUtil.
     * If the value is a Collection containing Entity objects, each Entity will be converted to a Map.
     * For other types of values, they are registered directly.
     *
     * @param data the RenderData object to register the value in
     * @param key the key to associate with the value

     * Processes advanced search parameters like occurrence, phrases, OR queries, NOT queries,
     * file types, site searches, and timestamp filters.
     *
     * @param queryBuf the StringBuilder to append conditions to
     * @param conditions a map of condition types to their values
     */
    protected void appendConditions(final StringBuilder queryBuf, final Map<String, String[]> conditions) {

     * @param defaultClazz The default implementation type
     * @return Custom implementation type if one was given; otherwise default implementation type
     */
    private static Class<?> loadImplementation(final String name, final Class<?> defaultClazz) {
        if (null == name) {
            return defaultClazz; // just use the default type
        }

import java.util.Optional;

import eu.maveniverse.domtrip.Document;
import org.apache.maven.api.cli.mvnup.UpgradeOptions;
import org.apache.maven.cling.invoker.mvnup.UpgradeContext;

/**
 * Strategy interface for different types of upgrade operations.
 * Each strategy handles a specific aspect of the Maven upgrade process.
 *
 * <p>Strategies work with domtrip Documents for perfect formatting preservation.

import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * An empty contiguous set.
 *
 * @author Gregory Kick
 */
@GwtCompatible
@SuppressWarnings("rawtypes") // allow ungenerified Comparable types
final class EmptyContiguousSet<C extends Comparable> extends ContiguousSet<C> {
  EmptyContiguousSet(DiscreteDomain<C> domain) {
    super(domain);
  }

  @Override
  public C first() {

import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@link Multisets#unmodifiableSortedMultiset(SortedMultiset)}, split out into
 * its own file so it can be GWT emulated (to deal with the differing elementSet() types in GWT and
 * non-GWT).
 *
 * @author Louis Wasserman
 */
@GwtCompatible
final class UnmodifiableSortedMultiset<E extends @Nullable Object> extends UnmodifiableMultiset<E>
    implements SortedMultiset<E> {

 * <p>
 * Maven uses extensible enumerations to allow plugins and extensions to add new values
 * to various categories like languages, scopes, and packaging types. This interface is the
 * base for all providers that register such extensions.
 * <p>
 * Implementations of this interface are discovered through the Java ServiceLoader mechanism.

${includes} = ?"${maven.user.conf}/maven-user.properties", \
              ?"${maven.project.conf}/maven-user.properties"

#
# Maven Cache Configuration
#
# Controls caching behavior for different request types during Maven builds.
# Format: RequestType { scope:SCOPE ref:REFERENCE_TYPE }
#
# SCOPE OPTIONS:
#   session - Cache for entire Maven session (all modules in multi-module build)

 * to the construction and invocation of Maven commands and builds, and it fully parses arguments.
 *
 * <p>The Invoker is designed to be flexible, allowing for different implementations
 * that can handle various types of {@link InvokerRequest InvokerRequests}. It also implements
 * {@link AutoCloseable} to ensure proper resource management.</p>
 *
 * @since 4.0.0
 */
@Experimental
public interface Invoker extends AutoCloseable {

By declaring a *path operation function* parameter with the type being the `Request` **FastAPI** will know to pass the `Request` in that parameter.

/// tip

Note that in this case, we are declaring a path parameter beside the request parameter.

So, the path parameter will be extracted, validated, converted to the specified type and annotated with OpenAPI.