import org.gradle.api.artifacts.dsl.Dependencies;
import org.gradle.api.artifacts.dsl.DependencyCollector;

// tag::custom-dependencies-type[]
/**
 * Custom dependencies block for the example plugin.
 */
public interface ExampleDependencies extends Dependencies {
// end::custom-dependencies-type[]

// tag::custom-dependencies-scopes[]
    /**
     * Dependency scope called "implementation"
     */
    DependencyCollector getImplementation();

    // tag::dependencies-accessors[]
    /**
     * Custom dependencies for this extension.
     */
    @Nested
    ExampleDependencies getDependencies();

    /**
     * Configurable block
     */
    default void dependencies(Action<? super ExampleDependencies> action) {
        action.execute(getDependencies());
    }
    // end::dependencies-accessors[]

        String dependency = "some:random-dependency:0.1.1"
        when:

        Callable<List<String>> exampleDependencies = {
            [dependency]
        }

        def callableType = new TypeOf<Callable<List<String>>>() {}
        dependencyHandler.extensions.add(callableType, "example", exampleDependencies)

        ExtensionContainer extension = dependencyHandler.extensions

====
[source.multi-language-sample,java]
.ExampleDependencies.java
----
include::{snippetsPath}/plugins/dependenciesBlock/common/buildSrc/src/main/java/com/example/ExampleDependencies.java[tags=custom-dependencies-type]
----
====

==== 2. Add accessors for dependency scopes