/**
     * Deletes the specified files.
     * The given action is used to configure a {@link DeleteSpec}, which is then used to delete the files.
     *
     * @param action Action to configure the DeleteSpec
     * @return {@link WorkResult} that can be used to check if delete did any work.
     */
    WorkResult delete(Action<? super DeleteSpec> action);

    /**

import org.gradle.api.PathValidation;
import org.gradle.api.file.ConfigurableFileCollection;
import org.gradle.api.file.ConfigurableFileTree;
import org.gradle.api.file.CopySpec;
import org.gradle.api.file.DeleteSpec;
import org.gradle.api.file.FileCollection;
import org.gradle.api.file.FileTree;
import org.gradle.api.file.SyncSpec;
import org.gradle.api.resources.ResourceHandler;
import org.gradle.api.tasks.WorkResult;