</dependency>
    <dependency>
      <groupId>ognl</groupId>
      <artifactId>ognl</artifactId>
      <version>3.0.12</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>marmalade</groupId>
      <artifactId>marmalade-core</artifactId>
      <version>0.1</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <dependency>

    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-di</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-model</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-settings</artifactId>
    </dependency>
    <dependency>

        super(projectId, formatLocationInPom(dependency), dependency.getVersion(), pomFile, cause);
        this.dependency = dependency;
    }

    private static String formatLocationInPom(Dependency dependency) {
        return "Dependency: " + ArtifactUtils.versionlessKey(dependency.getGroupId(), dependency.getArtifactId());
    }

    public Dependency getDependency() {
        return dependency;
    }

    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-spi</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-core</artifactId>
    </dependency>

    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-xml</artifactId>
    </dependency>
    <dependency>

    }

    private Dependency merge(Dependency dep1, Dependency dep2) {
        throw new IllegalArgumentException("Duplicate dependency: " + getDependencyKey(dep1));
    }

    private static String getDependencyKey(org.apache.maven.api.Dependency dependency) {
        return dependency.getGroupId() + ":" + dependency.getArtifactId() + ":"
                + dependency.getType().id() + ":" + dependency.getClassifier();

    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-settings</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-toolchain</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-plugin</artifactId>
    </dependency>
    <dependency>

        ("/asynchronous-method-gen-dependency", "asynchronous-method-gen-dependency"),
        ("/callable-dependency-class", "callable-dependency-class"),
        ("/callable-gen-dependency-class", "callable-gen-dependency-class"),
        ("/async-callable-dependency-class", "async-callable-dependency-class"),
        ("/async-callable-gen-dependency-class", "async-callable-gen-dependency-class"),

This is quite simple (not very useful), but will help us focus on how the sub-dependencies work.

## Second dependency, "dependable" and "dependant" { #second-dependency-dependable-and-dependant }

Then you can create another dependency function (a "dependable") that at the same time declares a dependency of its own (so it is a "dependant" too):

{* ../../docs_src/dependencies/tutorial005_an_py310.py hl[13] *}

Let's focus on the parameters declared:

        /**
         * Adds the specified direct dependency.
         *
         * @param dependency the dependency to add, may be {@code null}
         * @return this request for chaining, never {@code null}
         */
        @Nonnull
        public DependencyResolverRequestBuilder dependency(@Nullable DependencyCoordinates dependency) {
            if (dependency != null) {
                if (this.dependencies.isEmpty()) {

    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-model</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-xml</artifactId>
    </dependency>

    <!-- Maven4 impl -->
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-core</artifactId>
    </dependency>
    <dependency>