*/
    void registerPluginBuild(IncludedBuildSpec includedBuildSpec);

    /**
     * Returns the set of plugin builds for this build. These are registered using {@link #registerPluginBuild(IncludedBuildSpec)}.
     */
    Collection<IncludedBuildState> getRegisteredPluginBuilds();

    /**

        File projectDir = fileResolver.resolve(rootProject);
        IncludedBuildSpec buildSpec = IncludedBuildSpec.includedPluginBuild(projectDir, configuration);
        buildIncluder.registerPluginBuild(buildSpec);
        includedBuildSpecs.add(buildSpec);
    }

    @Override
    public List<IncludedBuildSpec> getIncludedBuilds() {
        return includedBuildSpecs;
    }

            coordinator.prepareForInclusion(build, buildDefinition.isPluginBuild());
            return build;
        }
    }

    @Override
    public void registerPluginBuild(IncludedBuildSpec includedBuildSpec) {
        pluginBuildDefinitions.add(toBuildDefinition(includedBuildSpec, gradle));
    }

    @Override
    public Collection<IncludedBuildState> getRegisteredPluginBuilds() {