* @see ArtifactResolver#resolve(Session, Collection)
     */
    @Override
    public Map.Entry<Artifact, Path> resolveArtifact(ArtifactCoordinate coordinate) {
        return getService(ArtifactResolver.class)
                .resolve(this, Collections.singletonList(coordinate))
                .getArtifacts()
                .entrySet()
                .iterator()
                .next();
    }

    /**

     *
     * @param coordinate artifact coordinate to get as a dependency coordinate
     * @return dependency coordinate for the given artifact
     *
     * @see DependencyCoordinateFactory#create(Session, ArtifactCoordinate)
     */
    @Nonnull
    DependencyCoordinate createDependencyCoordinate(@Nonnull ArtifactCoordinate coordinate);

    /**

        return builder()
                .session(nonNull(session, "session cannot be null"))
                .groupId(nonNull(coordinate, "coordinate cannot be null").getGroupId())
                .artifactId(coordinate.getArtifactId())
                .version(coordinate.getVersion().asString())
                .classifier(coordinate.getClassifier())

    private final @Nonnull org.eclipse.aether.artifact.Artifact coordinate;

    public DefaultArtifactCoordinate(
            @Nonnull InternalSession session, @Nonnull org.eclipse.aether.artifact.Artifact coordinate) {
        this.session = nonNull(session, "session");
        this.coordinate = nonNull(coordinate, "coordinate");
    }

    public org.eclipse.aether.artifact.Artifact getCoordinate() {

    private final @Nonnull org.eclipse.aether.artifact.Artifact coordinate;

    public DefaultArtifactCoordinate(
            @Nonnull InternalSession session, @Nonnull org.eclipse.aether.artifact.Artifact coordinate) {
        this.session = nonNull(session, "session");
        this.coordinate = nonNull(coordinate, "coordinate");
    }

    public org.eclipse.aether.artifact.Artifact getCoordinate() {

class ItemGroup(BaseModel):
    items: List[Tuple[str, str]]


class Coordinate(BaseModel):
    x: float
    y: float


@app.post("/model-with-tuple/")
def post_model_with_tuple(item_group: ItemGroup):
    return item_group


@app.post("/tuple-of-models/")
def post_tuple_of_models(square: Tuple[Coordinate, Coordinate]):
    return square


@app.post("/tuple-form/")

        return ArtifactCoordinateFactoryRequest.builder()
                .session(nonNull(session, "session"))
                .groupId(nonNull(coordinate, "coordinate").getGroupId())
                .artifactId(coordinate.getArtifactId())
                .classifier(coordinate.getClassifier())
                .version(coordinate.getVersion().asString())

     * @see ArtifactResolver#resolve(Session, Collection)
     */
    @Override
    public Map.Entry<Artifact, Path> resolveArtifact(ArtifactCoordinate coordinate) {
        return getService(ArtifactResolver.class)
                .resolve(this, Collections.singletonList(coordinate))
                .getArtifacts()
                .entrySet()
                .iterator()
                .next();
    }

    /**

 *
 * @since 4.0.0
 */
@Experimental
public interface ArtifactCoordinateFactory extends Service {

    /**
     * Creates a coordinate.
     *
     * @param request the request holding coordinate creation parameters
     * @return an {@code ArtifactCoordinate}, never {@code null}
     * @throws IllegalArgumentException if {@code request} is null or {@code request.session} is null or invalid

    @Nonnull
    default DependencyCoordinate create(@Nonnull Session session, @Nonnull ArtifactCoordinate coordinate) {
        return create(DependencyCoordinateFactoryRequest.build(session, coordinate));
    }

    @Nonnull
    default DependencyCoordinate create(@Nonnull Session session, @Nonnull org.apache.maven.api.Dependency dependency) {