String pluginId = declaration.getId();
        IvyPublicationInternal publication = (IvyPublicationInternal) publications.create(declaration.getName() + "PluginMarkerIvy", IvyPublication.class);
        publication.setAlias(true);
        publication.setOrganisation(pluginId);
        publication.setModule(pluginId + PLUGIN_MARKER_SUFFIX);

* multiple <<plugins.adoc#sec:plugin_markers,"marker" publications>> (one for each plugin defined in the `gradlePlugin {}` block), named `<pluginName>PluginMarkerIvy` (for example in the above example it would be `simplePluginPluginMarkerIvy`)